Common Katakana Words

You memorized the shapes. Now put them to work.

片仮名(カタカナ) (katakana) is primarily used for 外来語(がいらいご) (gairaigo), foreign loanwords. And because Japan borrowed heavily from English over the past century, your English does most of the heavy lifting here.

Walk into a Japanese café and read: コーヒー, ケーキ, サンドイッチ. Open a phone menu: スマートフォン, アプリ, インターネット. You didn’t memorize those words. You sounded them out.

▶Listen ▶Listen ▶Listen ▶Listen ▶Listen

This page covers the sound adaptation rules, then gives you word lists by category and a guessing game to sharpen your reflexes.

Why Katakana = Foreign Words

When Japanese encounters a foreign concept, it typically writes the imported word in katakana rather than inventing kanji:

Script	Example	What it signals
Katakana	コンピューター	Imported from another language
Kanji	電話 (telephone)	Old import, now fully “Japanized”
Hiragana	すみません	Native Japanese word

Modern imports, especially from English, almost always arrive in katakana. Most katakana words you encounter can be solved by sounding them out.

Mandarin Bridge 中文橋

Mandarin handles foreign words differently, often with phonetic kanji (咖啡 kāfēi for coffee, 沙发 shāfā for sofa). Japanese skips the kanji step and writes the sound directly in katakana: コーヒー, ソファ. You can’t map katakana to Chinese characters, but your English ear fills the gap.

The decoding method

Here’s the technique:

1. See katakana → レストラン
2. Read the syllables → re-su-to-ra-n
3. Say it fast with English ears → “restaurant”
4. Confirm in context → sign outside a dining establishment ✓

You won’t get every word on the first try. Japanese stretches and trims sounds to fit its phonology, and some adaptations are hard to reverse-engineer. But for modern vocabulary especially, you’ll guess right more often than not.

The “mumble test” helps: read katakana syllable by syllable, then mumble them together quickly without enunciating. Your brain auto-corrects toward the English word. テレビジョン → “te-re-bi-jo-n” → mumble → “television.” This works better than trying to hear perfect English in each syllable.

How Japanese Adapts Foreign Sounds

Japanese has strict phonological rules. Every syllable must follow the pattern (consonant +) vowel, with only ん as an exception. No consonant clusters, no silent letters, no standalone consonants.

When English (or other languages) enters Japanese, sounds get reshaped to fit.

Core Adaptation Rules

English pattern	Japanese adaptation	Why
L sounds	R sounds (ラ行)	Japanese has no L; R is the closest
Th	S or Z (サ/ザ行)	No “th” in Japanese
V	B or ヴ	V is approximated; ヴァ is modern
Consonant clusters (st, tr, ct)	Broken with vowels	“st” → スト, “tr” → トル
Final consonants (d, t, k, n)	Vowel added	“bread” → ブレッド
R at end of syllable	Often dropped or → ル/ー	“computer” → コンピューター
Long vowels	ー (chōon mark)	Stretches the preceding vowel
F	フ or ファ/フィ/フェ/フォ	Native F-sounds use small vowels

Long Vowels — The ー (Chōon) Mark

The horizontal bar ー doubles the length of the preceding vowel sound:

Word	Without ー	With ー	English
コーヒー	コホイ (wrong)	コーヒー	coffee
ケーキ	ケキ (wrong)	ケーキ	cake
スーパー	スポ (wrong)	スーパー	super

False Friend 偽りの友

Don’t ignore ー. ビル (bir-u) means “building.” ビール (bīru) means “beer.” One long vowel, completely different word. Treat ー as part of the spelling, not decoration.

Why does English 'coffee' become コーヒー and not コホイ?

A. Long vowels use ー (chōon) to stretch the soundB. Japanese adds an extra kanji for foreign wordsC. Coffee is written in hiragana, not katakanaD. The ー is optional decoration

Transformation Examples — Watch the Process

English	Step-by-step adaptation	Japanese
coffee	cof-fee → ko-fi-i → long vowels	コーヒー (kōhī)
sandwich	sand-wich → sa-n-do-i-chi	サンドイッチ (sandoitchi)
smartphone	smart-phone → su-ma-a-to-fo-n	スマートフォン (sumātofon)
hotel	ho-tel → ho-te-ru (final L → ru)	ホテル (hoteru)
milk	milk → mi-ru-ku (L → R, vowels added)	ミルク (miruku)
three	three → su-ri-i (th → s)	スリー (surī)
party	par-ty → pa-a-te-i (t+y → ti)	パーティー (pātī)
chocolate	cho-co-late → cho-ko-re-e-to	チョコレート (chokorēto)

Deep Dive 深掘り

Why パン for bread? Not all loanwords come from English. パン (pan) came from Portuguese “pão.” Portuguese traders arrived in Japan in the 1540s, a century before English influence, which is why bread uses a short, simple katakana word while “cake” is the longer English import ケーキ. When a word feels unusually short or old, check European languages beyond English.

Food and drinks

Restaurant menus and convenience stores are full of katakana. You can read most of a menu just by sounding things out.

Katakana	Romaji	English source	Notes
コーヒー	kōhī	coffee	Long ー in both syllables
ビール	bīru	beer	Don’t confuse with ビル (building)
サラダ	sarada	salad	Straightforward
ケーキ	kēki	cake	ケ + ーキ
チョコレート	chokorēto	chocolate	Four syllable blocks
パン	pan	bread (Portuguese pão)	Not from English!
アイスクリーム	aisu kurīmu	ice cream	Two-word compound
サンドイッチ	sandoitchi	sandwich	Breaks “wich” → イッチ
バター	batā	butter	Final R → ru sound
チーズ	chīzu	cheese
ジュース	jūsu	juice
ワイン	wain	wine
ハンバーガー	hanbāgā	hamburger
ピザ	piza	pizza	Short and easy
ステーキ	sutēki	steak
カレー	karē	curry	From English, originally Tamil
スープ	sūpu	soup
デザート	dezāto	dessert
オレンジジュース	orenji jūsu	orange juice

A practical menu-scanning trick: look for ー first (marks long vowels and often English words), then spot category patterns like コーヒー/ティー/ジュース (drinks) or ケーキ/パン/サンドイッチ (food).

What English word is レストラン?

A. RestaurantB. RestroomC. ReservationD. Research

Technology

Tech vocabulary is almost entirely katakana, and almost entirely English.

Katakana	Romaji	English source	Notes
コンピューター	konpyūtā	computer	Classic long-word example
インターネット	intānetto	internet
スマートフォン	sumātofon	smartphone	Or shortened: スマホ
アプリ	apuri	app (application)	Abbreviated
スマホ	sumaho	smartphone	スマート + ホン clipped
パソコン	pasokon	personal computer	和製英語 — PC clipped
ソフトウェア	sofutowea	software
ハードウェア	hādowea	hardware
ダウンロード	daunrōdo	download
アップデート	appudēto	update
クリック	kurikku	click
パスワード	pasuwādo	password
データ	dēta	data
サーバー	sābā	server
メール	mēru	email	Short for エメール
エーアイ	ēai	AI (artificial intelligence)	Spelled out in Japanese
チャットボット	chattobbotto	chatbot
QRコード	kyūāru kōdo	QR code	Used everywhere in Japan
キャッシュレス	kyasshuresu	cashless	Japan’s payment revolution
SNS	esu-enu-esu	social media	Japanese abbreviation for social networking service
Wi-Fi	waifai	Wi-Fi	Written as-is or ワイファイ
サブスク	sabusuku	subscription	Clipped from サブスクリプション
モバイルバッテリー	mobairu batterī	portable charger	Essential travel item

Japanese loves clipping long katakana words: スマートフォン → スマホ, パーソナルコンピューター → パソコン, サブスクリプション → サブスク. Once you notice the pattern, you can guess abbreviations you have never seen.

Culture 文化メモ

Japan has rapidly adopted cashless payment since 2020. You will see キャッシュレス signs everywhere: QRコード payments (PayPay is the most popular), IC cards (Suica/PASMO), and credit cards. Many shops still accept cash, but having a digital payment method speeds things up. The phrase 「PayPayで」 (PayPay de, “with PayPay”) or 「カードで」 (kādo de, “by card”) tells the cashier your payment method.

Travel

These appear on signs, booking sites, and in airports.

Katakana	Romaji	English source	Notes
ホテル	hoteru	hotel	Final L → ル
タクシー	takushī	taxi
バス	basu	bus
レストラン	resutoran	restaurant
エレベーター	erēbētā	elevator
エスカレーター	esukarētā	escalator
チケット	chiketto	ticket
パスポート	pasupōto	passport
ガイド	gaido	guide
ツアー	tsuā	tour
リゾート	rizōto	resort
チェックイン	chekku in	check-in
シングル	shinguru	single (room)
ダブル	daburu	double (room)
トランジット	toranjitto	transit

Daily life

Words you will encounter on your first day in Japan.

Katakana	Romaji	English source	Notes
テレビ	terebi	TV / television	Shortened
ニュース	nyūsu	news
シャワー	shawā	shower
トイレ	toire	toilet	From “toilette”
エアコン	eakon	air conditioner	Clipped from air-con
リモコン	rimokon	remote control	Remote + con
カメラ	kamera	camera
ミュージック	myūjikku	music
ゲーム	gēmu	game
ファッション	fasshon	fashion
セール	sēru	sale	Signs everywhere
サービス	sāvisu	service	Also “on the house / complimentary”
トラブル	toraburu	trouble
アナウンス	anaunsu	announcement
ペット	petto	pet
ドア	doa	door

Words NOT from English

Not every katakana word traces back to English. Knowing the other sources prevents wrong guesses.

Katakana	Romaji	Actual source	Meaning
パン	pan	Portuguese pão	bread
アルバイト	arubaito	German Arbeit	part-time job
ランドセル	randoseru	Dutch ransel	school backpack
イクラ	ikura	Russian ikra	salmon roe
タクシー	takushī	English (but via multiple langs)	taxi
トイレ	toire	French toilette	toilet
コップ	koppu	Dutch kop	drinking glass
メンチ	menchi	English “mince”	minced meat cutlet
カルテ	karute	German Karte	medical chart
ギプス	gipusu	German Gips	plaster cast

Mandarin Bridge 中文橋

Some of these have Chinese equivalents from the same European source: German Arbeit → Japanese アルバイト, while Mandarin uses 工作 (gōngzuò) or 兼职 (jiānzhí). Portuguese pão → Japanese パン, while Mandarin uses 面包 (miànbāo). The katakana tells you “foreign,” but the foreign language isn’t always English.

Reverse guessing game

Cover the “Answer” column. Read the katakana, say it aloud, then guess the English word.

#	Katakana	Your guess	Answer
1	ミルク	?	milk
2	テーブル	?	table
3	ノート	?	notebook
4	ペン	?	pen
5	ボタン	?	button
6	カレンダー	?	calendar
7	プレゼント	?	present (gift)
8	クリスマス	?	Christmas
9	バレンタインデー	?	Valentine’s Day
10	エレベーター	?	elevator
11	コンビニ	?	convenience store (clipped)
12	プログラム	?	program
13	システム	?	system
14	リラックス	?	relax
15	ストレス	?	stress
16	エネルギー	?	energy
17	チャンス	?	chance
18	トレーニング	?	training
19	フィルム	?	film
20	ゼロ	?	zero

Score yourself: 15+ correct means your decoding reflex is solid. Under 10? Go back to the adaptation rules and practice on real コンビニ (convenience store) signs. They’re free study material all over Japan.

Wasei-eigo: “English” that isn’t English

和製英語(わせいえいご) (wasei-eigo) means “Japanese-made English.” These are words built from English pieces that do not exist in English, or that mean something different.

Japanese katakana	Romaji	What English speakers think	What it actually means in Japanese
サラリーマン	sararīman	salary man (?)	office worker / white-collar employee
ナイター	naitā	nighter (?)	night game (baseball)
マンション	manshon	mansion	apartment building (not a villa!)
スキンシップ	sukinshippu	skin + ship	physical bonding / affectionate touch
バイキング	baikingu	Viking	all-you-can-eat buffet
フライドポテト	furaido poteto	fried potato	french fries
ペーパードライバー	pēpā doraibā	paper driver	someone with a license but no driving experience
ガソリンスタンド	gasorin sutando	gasoline stand	gas station
オーダーメイド	ōdāmeido	order made	custom-made, tailor-made
キャッチボール	kyatchi bōru	catch ball	playing catch
ドンマイ	donmai	don’t… my?	“don’t worry” (from “don’t mind”)
サイン	sain	sign	autograph

False Friend 偽りの友

マンション is the big one. If someone invites you to their マンション, they mean a standard apartment building, not a luxury mansion. サラリーマン doesn’t mean a well-paid executive either; it’s any office worker in a suit. Wasei-eigo words look English but live in a Japanese semantic world.

A sign says バイキング. What does it mean in Japanese?

A. All-you-can-eat buffetB. Viking warrior theme parkC. Biking rental shopD. Banking services

Where did バイキング (Viking) come from for “all-you-can-eat buffet”? Allegedly from a 1958 restaurant ad that used the image of a Viking smorgasbord. These words are not mistakes or bad translations. They are Japanese English, spoken by 130 million people. Learn them as Japanese vocabulary.

Putting it together

サラリーマンがコンビニでコーヒーとサンドイッチを買って、オフィスでパソコンの前でランチを食べた。

Sound it out piece by piece:

Katakana	Decoded
サラリーマン	office worker (wasei-eigo)
コンビニ	convenience store
コーヒー	coffee
サンドイッチ	sandwich
オフィス	office
パソコン	personal computer
ランチ	lunch

Translation: “An office worker bought coffee and a sandwich at the convenience store, and ate lunch in front of their computer at the office.”

Seven katakana words in one sentence. You didn’t need a dictionary for any of them.

What’s next

At this point you have two things working for you:

1. Visual recognition of all 46 characters plus the foreign-sound combinations
2. The sound adaptation rules that let you reverse-engineer English from katakana

That said, not everything sounds like English. Words from Portuguese, German, Dutch, and French will trip you up, and wasei-eigo will actively mislead you. The guessing game above is honest practice for that: the words you missed are the ones worth reviewing.

The kanji chapters ahead will give you similar traction with Chinese-origin vocabulary. For now, keep sounding out katakana on signs and menus. It gets faster.

Key takeaways

• Most modern katakana words decode from English: read syllables, mumble fast, confirm in context
• Sound adaptation rules: L→R, no consonant clusters, final consonants get vowels, long vowels use ー
• Not all loanwords are English — パン (Portuguese), アルバイト (German), トイレ (French)
• Wasei-eigo (和製英語) looks English but means something different: マンション = apartment, バイキング = buffet

Mark as CompleteNext: Radicals You Already Know →