Your grammar can be flawless and you can still sound rude — just by picking the wrong word to put after someone's name.
Japanese attaches a small suffix to almost every name you say out loud, and which one you choose says something about your relationship to that person — respect, familiarity, hierarchy, affection. Get it wrong, and it can land strangely even when every other word in the sentence is correct.
👤 The Honorifics, One at a Time
| Suffix | Used for | Example |
|---|---|---|
| ~さん (san) | The safe, universal default — adults, colleagues, strangers, acquaintances | Tanaka-san |
| ~様 (sama) | More formal and respectful — customers, formal letters, service contexts | Tanaka-sama, o-kyaku-sama ("honored customer") |
| ~先生 (sensei) | Teachers, doctors, lawyers, and other instructive or respected professional roles | Tanaka-sensei |
| ~くん (kun) | Younger or junior people, often boys/men in school or junior colleagues at work | Tanaka-kun |
| ~ちゃん (chan) | Affectionate — children, close friends, pets, cute nicknames | Yuki-chan |
If you're not sure which to use, ~san is almost always the safe choice. It works for nearly any adult you're not personally close with, and nobody will find it strange.
🙅 Dropping the Honorific Entirely (Yobisute)
Using someone's bare name with no suffix at all — called yobisute (呼び捨て) — is reserved for genuinely close relationships: family, close friends, sometimes romantic partners. Doing this with someone you just met, or someone senior to you, reads as overly familiar or even disrespectful, even though in English dropping a title and using a first name is often just normal friendliness.
🚫 Never Add One to Your Own Name
This catches a lot of learners: honorifics are something you give to other people, never attach to your own name. Introducing yourself as "Natty-san" would sound distinctly odd to a Japanese listener — simply "Natty desu" (ナティです) is correct.
⚠️ 7 Mistakes to Avoid
- Attaching an honorific to your own name — never do this; honorifics are for others only.
- Using ~chan or ~kun with someone senior to you — these read as affectionate or junior-facing, not respectful.
- Dropping the honorific with someone you just met — yobisute (no suffix) is for close relationships only.
- Assuming ~san is too formal for everyday use — it's actually the safe, standard default in almost every context.
- Using ~sama in casual conversation — it's noticeably more formal; save it for customer-service or very respectful contexts.
- Calling a non-teacher "sensei" as a joke without reading the room — it's a genuine title of respect, not a casual nickname.
- Switching to a first-name-only basis too quickly — let the other person signal that shift rather than assuming it yourself.
📋 Your Cheat-Sheet Recap
| Suffix | Safe default use |
|---|---|
| ~さん (san) | When in doubt, use this |
| ~様 (sama) | Formal, customer-facing, written letters |
| ~先生 (sensei) | Teachers, doctors, other respected professionals |
| ~くん (kun) | Juniors, often boys/men, school or work context |
| ~ちゃん (chan) | Children, close friends, affectionate nicknames |
| No suffix | Close relationships only — never with someone new |
When unsure, default to ~san and let the other person invite anything more casual — this one habit alone keeps you safely polite in nearly every situation.