ありがとう (arigatō) is the word everyone learns first — and it's a fine start. But Japanese scales thanks by politeness and by situation, and using the same arigatō for your boss and your best friend can land wrong in both directions. Here's the full ladder.
Thank you, by politeness
| Japanese | Reading | Level |
|---|---|---|
| どうも | dōmo | Very casual — "thanks" / "cheers" |
| ありがとう | arigatō | Casual, friendly |
| ありがとうございます | arigatō gozaimasu | Polite (your default) |
| どうもありがとうございます | dōmo arigatō gozaimasu | Very polite / heartfelt |
When in doubt, arigatō gozaimasu is the safe, polite default — use it with staff, strangers and anyone senior. Add どうも (dōmo) in front to deepen it.
One nuance: for something someone is about to do, use the present ございます; for something they've already done, you'll often hear the past ありがとうございました (arigatō gozaimashita).
"Excuse me" that means thank you
Here's the one that surprises learners: すみません (sumimasen) is usually "excuse me / sorry," but it also works as thanks — specifically when someone has gone out of their way for you. It carries a nuance of "sorry for the trouble, and thank you." A dropped glove returned, a seat given up — sumimasen fits perfectly.
Situational thank-yous
Japanese has set phrases for specific moments:
- ごちそうさまでした (gochisōsama deshita) — said after a meal, thanking whoever provided it (and the cook). Before eating, you say いただきます (itadakimasu).
- お疲れさまです (otsukaresama desu) — "thank you for your hard work," said among colleagues, especially when leaving or finishing a task.
- お世話になりました (osewa ni narimashita) — "thank you for taking care of me," for someone who's helped you over time.
How to reply to thanks
If someone thanks you:
- どういたしまして (dō itashimashite) — "you're welcome" (the textbook reply).
- いえいえ (ie ie) — "no no, it's nothing" — softer and more common in casual speech.
Learn it where you'll hear it
Thanks is everywhere in Japan — shop staff will thank you constantly (arigatō gozaimasu!), and you'll want to return it in kind. The phrases stick fastest when you meet them live: point a camera translator at signs and receipts, or use voice to catch spoken thanks, and the register starts to make sense. Next, pick up how to say hello in Japanese and the essential travel phrases.