Kimetsu No Yaiba meaning – The full story behind Demon Slayer’s Japanese Name

Kimetsu No Yaiba meaning - The full story behind Demon Slayer’s Japanese Name 鬼滅の刃

What does the Japanese name of the cult Japanese anime Dragon Slayer, Kimetsu no Yaiba kimetsu 鬼滅の刃 mean?

Simply translated, Kimetsu no Yaiba means “Demon Killing Blade”. “鬼 ki” means “demon”, “滅 metsu” means destroy, “の no” means “of” and “刃 yaiba” means “blade”. So to do an extreme literal translation it would be “Demon Destroying, the Blade Of”. 

That doesn’t have much of a ring to it, so the translators wisely opted for something a little more catchy for Kyoharu Gotoge’s homage to zombie-like undead extermination, “Demon Slayer”.

If you’re interested in knowing more about the Demon Slayer Opening Theme 鬼滅の刃主題歌 Gurenge 紅蓮華 with lyrics in english translation then look here.

Approx Japanese level


Are 鬼滅の刃 Kimetsu no yaiba and “Demon Slayer” the same meaning?

At first glance, “Demon Slayer”, makes us think of a person that kills demons. But given the Japanese original meaning of Kimetsu No Yaiba, it is likely that Demon Slayer refers to the blade itself. It is totally natural for “Demon Slayer” to refer as much to an object as a person in English. Think other swords with names, such as “Excalibur” or “Kusanagi No Tsurugi”.

So, if you look at the name this way, it is actually a fairly close translation of the original. 

The series seems well named, given the centrality in the story of swords such as the “日輪刀” Nichirintou、or Blade of the Sun, to the plot. It is the only device capable of truly destroying the “demons”.

Breaking down the words and characters in Kimetsu No Yaiba

刃 Yaiba

The term “Yaiba” is a fairly rare, somewhat archaic sounding, word for blade or sword. It was one of a long list of words that can be used to describe a sword in Japanese. A partial list of words you could choose from to either refer to a sword in more or less generic/specific variations include:


剣 Ken

剣 Tsurugi

刀 Tou

刀 Katana

太刀 Tachi

日本刀 Nihonken

刀剣 Token

刃 Yaiba, Jin, Ha


And that’s only carving out a small chunk of the options that could be expanded by including more specific words such as:


脇差 Wakizashi for a sword you keep close to your “waki”, underarm area, or a 直刀 chokuto, meaning a straight sword.

It is not too long a bow to draw to say that Japanese have a bit of a thing for sharp weapons. 

That being said, the English speaking world also puts up a good fight with words like sword, sabre, cutlass, scimitar, rapier, dagger, hanger, claymore, backsword, broadsword, greatsword.

Maybe it is more accurate to say that humans are a cut above when it comes to knife-talk.


Etymology of “Yaiba”

The Yaiba, in Kimetsu no Yaiba, is also interesting in that it is the result of a phonetic change in a composite word 焼き刃 Yakiba. Yaki means, to fire something, such as in a kiln or forge. It can be seen in words like 焼き物 Yakimono for pottery, or more common food words that many non-Japanese people would be familiar with such as 焼き鳥 “Yakitori” for coal roasted chicken skewers or at the end of words like お好み焼き “Okonomiyaki” – which basically means “Fried Whatever-You-Want” (the Japanese equivalent of Bubble & Squeak). 

The 刃 “Ba” part means “blade”, and is pronounced “ha”  whenever not attached to another word. Interestingly, the other thing that is called a 歯 “Ha” are these, our teeth. So the language reminds us either that our teeth are really little slicing blades, or that our swords are extensions of our ability to cut people up with our teeth. 

So Yakiba could be literally translated as a “smelted blade” or “fired blade”. Over time, we can only assume that badass Samurai through the ages just didn’t have time to deal with all those consonants when dealing out hot feudal justice and cut “smelting blade” “Yakiba” to the somewhat sharper “Yaiba”.

The Chinese characters that are used to express the word Yaiba, or “Ha” or “Jin” as it can also be read, shows us connections in the language by being literally just one little dot stroke on one of the other words for sword 刀 katana. I like to think of it as being like a little drop of blood, but maybe that’s just me.

“Yaiba” can be used in a more specific sense to mean the pointed end of the sword, or meaning blade, or more generically as “sword”. As with most of the words for sword in Japanese, there is a lot more fluidity in their range of meanings than our “sword”.

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“鬼滅 Kimetsu” Meaning

If you look “Kimetsu” up in most Japanese dictionaries, you won’t find anything. The word is a  creation of the title’s author made by combining the characters for 鬼 “Oni”, roughly translated as “Demon”, and 滅びる “Horobiru” meaning to destroy or “overthrow” in its transitive form or to “die out” or “be extinguished” in it’s intransitive form. Of course, all Chinese characters used in Japanese have their 訓読み Kunyomi readings derived from Japanese, and their totally different 音読み Onyomi readings derived from Chinese, so Oni can also be read as “Ki”, and “Horobiru” as “metsu”. Hence, “Kimetsu” becomes a newly cut coinage destroying demons. Or “slaying”, if you prefer.

It is said that William Shakespeare made up somewhere in the vicinity of 1700 words. One of the cool things about Japanese is that the language makes this process of word creation easy by making it possible to kind of throw together any two characters that people will already know the meaning of to and have them get the gist of what the new word must be. I guess these are the equivalent of nualism portmanteaus in English such as “workcation”, “listicle” or “romcom”.

 Anyway, I hope that gives you a bit more of a deeper sense of what Kimetsu no Yaiba actually means. I actually first heard of the phrase, and the anime and manga, in 2020 when it appeared on the list of the 30 most popular words in Japanese for that year. You can listen to the original discussion I had with fellow Youtuber Moshi Moshi Yusuke at the time.

I’ve also done a full explanation of Naruto’s name meaning that you may want to check out if you’re a fan of that anime also.

You may also be interested in our Demon Slayer Costumes and Cosplay page here or my Japanese language learning resource list here.

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Moshi Moshi Yusuke Conversation Transcript

The next one is 鬼滅の刃




刃、はい。鬼滅の刃 これはアニメですね。















Demon Slayerでした。




これだけは、ちょっと見ました。 1 話2 話ぐらい見ました。




















































































So this is Kimetsu no Yaiba which has been translated into English as “Demon Slayer”, it’s a very popular anime. I guess we should take a look at what it looks like for people that haven’t come across this yet. So it’s an anime about people fighting “Oni” which is…


鬼ですよね, この「鬼」「鬼ですね」

So another reading for “oni” is “ki” and “metsu” being to…”destroy”ですかね、「滅」or “kill”.


And “Yaiba”,being sword. And we’re talking about how this is one of the many words for “sword” in Japan. They seem to have a lot of them including “Ken”, “Tou”, “Katana”, so there’s a lot of words that seem to mean sword. We’re saying that the “Yaiba” is particularly used about the end of the sword, the part, so not like the hilt of the sword or the sheath of the sword but the actual sword itself, and especially the end, the point of the sword. So “ki” being “oni”, “metsu” being “destroy”, “The Sword That Destoys the Oni”. でこの番組を見たときこの鬼は結構ゾンビー的な感じでした。







。So that’s something that has become very popular in Japan this year.

The next word we are looking at is


Kimetsu no Yaiba.


Yaiba, yes.

Demon Slayer.


This is an anime.


Did you see it?


No, I haven’t seen it.


I heard it’s playing in theaters now,

so I’m thinking of going to see it soon.


Oh, it’s in the movie theaters?


Yes’ it’s in theaters…


It’s not on TV?


It’s also on TV? How do

you say it in English?


Demon Slayer.

I watched a little bit of this yesterday.


I watched one or two episodes.


I thought it looked pretty interesting.

Yes, it is.


It’s very popular.


I think it will probably continue

to be popular in the future.


It’s so popular that it’s even been made

into a movie and played in theaters.


It’s especially popular now,





think that’s why it made it into the list

of the most popular words.


I watched it yesterday and I thought

the images were really beautiful.


I thought the animation was amazing.


I think the pictures are probably

better than Attack on Titan.


I think you might be right.


This is the first time I’ve

heard the word “Yaiba”,


but it refers to a sword right.


That’s correct.


A Yaiba is a sword.


When I heard “Yaiba”,

I thought again that there


really are a lot of words

for swords in Japan.


Yes, there are a lot of them because

swords were used for a long time.


Words like “Ken” and “tou”.

Yes, yes.


Especially, “blade” often refers to


the blade part of the sword.


Often say the nose part,

if it was a blade.


The blade is often referred

to as the blade part.


A sword has a place to hold it

and a case to put the sword in.


The pointed tip?


Yes, the cutting part


is especially associated with Yaiba.




I feel that it sounds like a Yamato word.


It sounds like a word that has

existed in Japan for a long time.


I don’t know about that.


As for the etymology of the word,

I can’t say for sure,


I wonder.

I’ve never really thought about it.






And this is the first time

I’ve heard of this “Kimetsu”.


When I looked it up in the dictionary,

which I have, it didn’t come up.




‘s only natural that it would not come up.


I think this is probably some

kind of newly created word.


I think that Japanese people can

understand the the meaning from looking


at the kanji characters for “Kimetsu”,


and that’s whey they chose the title.

kimetsu means to “mesu” the “Oni”, meaning


to defeat the demon.


It is referring to a sword

that can defeat the demon.


Is this “annihilation” the annihilation

that can be find in the word “extinction”?


Yes, the same one that is in



So let me explain a little

bit about English.


So this is Kimetsu no Yaiba which has been


translated into English as “Demon Slayer”,


it’s a very popular anime.


I guess we should take a look at what it


looks like for people that haven’t


come across this yet.


So it’s an anime about people fighting


“Oni”. This “Ki” is “Oni” right?


That’s correct.


So another reading for “oni” is “ki” and “

metsu” being to” It’s “destroy” or “kill”.


They seem to have a lot of them including


“Ken”, “Tou “We’re saying that the “Yaiba”

is particularly used about the end


of the sword, the part, so not like the

hilt of the sword or the sword itself.


We’re saying that the “Yaiba” is


particularly used about the end

of the sword, the part,


so not like the hilt of the sword or

the sheath of the sword but the actual


sword itself, and especially the end,

the point of the sword.


So “ki” being “oni”, “metsu” So “ki” being


“oni”, “metsu” being “destroy”,

“The Sword That Destoys the Oni”.


So when I saw this show,


this I thought the demons were

pretty zomby-ish.


They’re not really “oni” are they?


So that’s something that has become

very popular in Japan this year.

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Who is behind this site?

I’m Peter Joseph Head. I lived in Japan for four years as a student at Kyoto City University of the Arts and on working holiday. I have toured the country six times playing music and speak Japanese (JLPT N1).


Naruto Hoodies Guide

Naruto Hoodie

Guide to not buying a dud

Naruto is the 4th best selling Manga series of all time. In the two and half decades since its creation, it has exploded over the globe to one of the most popular Japanese comic characters around. 

So it’s no surprise that lots of people are after Naruto merch, and the Naruto hoodie is a popular choice – especially as a present for your anime loving family member or friend.

So here is a guide on how to buy a Naruto Hoodie gift that won’t disappoint.

Where To Buy Naruto Hoodies

There are a range of places to get yourself or a loved one wrapped in some Naruto. The top places to look are:

1. Xplayer Shop Hoodies

2. Amazon Naruto Hoodies

3. Amazon Japan Naruto Hoodies 

4. Etsy Naruto Hoodies

5. Aliexpress Naruto Hoodies

6. Teepublic Naruto Hoodies

Xplayer Shop Hoodies

The Xplayer shop has the best selection of deluxe, high quality Naruto hoodies for the serious fan.

Xplayer has given us a 15% discount for their products using code “japanoscope”.

#1 Long Green Naruto Hoodie Jacket

I really like this hoodie. I got one of these for my 12 year old son, and he loves it! It’s great quality, with a tough canvas-like cotton material.  The website lists this as a summer/spring jacket, but I think the coat length, draw strings, robust zippers and buttons make it good as a winter top as well. We took some photos of him wearing his Naruto hoodie jacket below.

Use code “japanoscope” for 15% discount!

#2 Dark "Akatsuki" style Naruto Hoodie Jacket

Here’s one for those that are fans of the “darker” side of the naruto universe!

 Use code “japanoscope” for 15% discount!

#3 Casual Naruto Hoodie Jacket

This one features the distinctive “Uchiha” family crest. It is stylish without being over the top, so can be worn in a range of contexts.

Use code “japanoscope” for 15% discount!

Amazon Naruto Hoodies

Amazon has a wide range of Naruto goods, maybe not quite so “maniac” as some of the other stuff here for the hardcore fan, but still solid.

#4 Trad-Cut Akatsuki Naruto Hoodie Jacket

This is the big one! This is the highest customer ranking Naruto hoodie on Amazon. It’s a classic hoodie, non-jacket style too, which will suit a lot of people:

Amazon Japan Naruto Hoodies

If you are looking for something a bit different from Naruto’s home land, try Amazon Japan, some of who’s sellers ship internationally, or you can use a shipping service to get them shipped to your country via Japan.

#5 Bright Sasuke Naruto Hoodie Jacket

This one is a STATEMENT. If you’re into the bold & the bright, this is the one.

Etsy Naruto Hoodies

Etsy has really interesting selections that you won’t find anywhere else. Their top rated Naruto hoodie is this retro design:

#6 Retro Classic Naruto Hoodie Jacket

The design on this one is so classic, it hits all the visual cues of the anime and consule game.

Aliexpress Naruto Hoodies

They are also often the cheapest options, although you won’t find so many “official” items.

#7 Bold Design Naruto Hoodie Jacket

These highly colorful Naruto hoodies are amongst the most striking on offer! They are also a bargain to boot…

Check Product On Aliexpress

Teepublic Naruto Hoodies

Great for unusual and fan generated designs. Teepublic lets independent designers make their own creations, so there are some great finds on there!

#8 Naruto Eats Ramen Hoodie Jacket

Naruto loves ramen! This one references your insider knowledge of the anime and simultaneously expresses your love of noodles. That’s a win-win!

Types of Naruto Hoodie Design

Let’s face it, this is going to be the big one for most people.

You are mostly going to find designs based around certain characters and places. The main ones are:

Naruto Hoodie Characters

Naruto Uzumaki

Of course, Naruto himself is the main man. So the bulk of Naruto hoodie paraphernalia features our hero.

Probably the most “classic” design is the orange sided one that the main character Naruto himself wears in most of the anime series. If you after something that is instantly recognisable to those who are already familiar with Naruto, but not necessarily to those who aren’t, this is probably the one to go for.

The top customer rated on Amazon in this style is this one:


Sasuke Uchiha

The main arch-nemesis of the piece is Sasuke, but he has his own dark charm that makes him one of the most popular characters from the Naruto universe. He’s a bit like the biblical disciple Peter who betrayed Jesus, but who is deep down (hopefully) a good person.

Suitably “bad boy” is the Sasuke themed denim hoodie below.

Kakashi Hatake

Kakashi is consistently voted as one of the most popular characters in Naruto. He is a leadership figure, is mysterious, and just down-right cool looking. So he is a popular motif in Naruto paraphernalia.

This is the top customer rated Kakashi item on Amazon, and even comes with a head band!


The Akatsuki are a bunch of bad-boy criminals with distinctive red ensignia. Their black background and striking logo, matched with their tough-gang mystique, make them popular in the Naruto merch world, including Naruto Hoodies.

Here is a classic example:


Official Versus Unofficial Naruto Hoodies

Officially licensed Naruto hoodie products will usually say so fairly prominently in the description. There is no guarantee that officially licensed products are actually going to be better than the unofficial products, but it does offer some suggestion that the product isn’t going to be complete rubbish. 

If you stick to only official products, it will limit your options a lot and you will probably have to pay more. In a lot of cases, you can do a little homework on product reviews and find something that you can have confidence in outside the confines of “official”.

Naruto Hoodie Materials

Naruto hoodies come in a range of materials. The word “hoodie” conjures up images of something fleecy and warm, but not all items called a hoodie will conform to these ideas.  A lot of people get excited about a hoodie design, order online, and then get disappointed when the item arrives and it doesn’t feel like how they had imagined. Before you click that “order” button take a moment to check what you are actually getting.

Usually Naruto hoodies will be some combination of:




If you want something that is going to last longer, try looking for something that has some proportion of natural fibre like cotton. 

A spandex garment is obviously going to be more stretchy and fitted rather than warm and fleecy, so be aware of this when ordering.

Naruto Hoodie Sizes

A lot of people have trouble with items being larger or smaller than they think because of differences in sizes between different countries, most notably between the United States and other Asian Countries.

Here is a list of the top customer rated Naruto Hoodies across several stores.

We hope that has simplified the process of finding a Naruto Hoodie. If you’re not sure, then it’s probably good to go for the trad-orange Naruto hoodie. Have fun!

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