“o-・go-” Prefixes: Beautifying vs Honorific Language (N4-N3) [JLPT N4]
By Nihongo to Japan · Updated July 3, 2026
「お水」「お名前」「ご住所」「ご連絡」 — when to use お, when to use ご, and what's the rule?
“o-・go-” Prefixes: Beautifying vs Honorific Language
「お」「ご」 are prefixes placed before nouns/adjectives to make words more polite, elegant. The core principle: 「お」 attaches to native Japanese words (kun-reading) (お水, お名前, お金, お忙しい); 「ご」 attaches to Sino-Japanese words (on-reading) (ご住所, ご連絡, ご家族, ご説明). E.g. 「お名前」 (name), 「ご住所」 (address), 「ご連絡ありがとうございます」 (thank you for your message). ⚠️ Two functions: ① beautifying language (making one's own speech more elegant: お水, お茶); ② honorific/humble language (showing respect to the other: お名前, ご連絡). ⚠️ Exceptions: some Sino-Japanese words also use お (お電話, お料理, お時間), to be memorized individually. ⚠️ Loanwords usually take neither (✗ おコーヒー).
🧠 Core nuance: making words polite, elegant (native words use お, Sino-Japanese use ご)
The core is using the お/ご prefix to make words polite, elegant, chosen by native vs Sino-Japanese: the basic principle — 「お」 attaches to native Japanese words (kun-reading) (お水[みず], お名前[なまえ], お金[かね], お忙しい); 「ご」 attaches to Sino-Japanese words (on-reading) (ご住所[じゅうしょ], ご連絡[れんらく], ご家族[かぞく], ご説明[せつめい]). ⚠️ Two functions: ① beautifying language — making one's own speech more elegant, refined (お水, お茶, お料理), not respect toward a specific person; ② honorific/humble language — showing respect to the other/the other's things (お名前 = your name, ご連絡 = your contact) or humbling oneself (ご説明します = allow me to explain). ⚠️ Important exceptions: some Sino-Japanese words also use お (お電話, お料理, お時間, お返事, お元気) — these are conventional, memorized individually (Sino-Japanese yet using お). ⚠️ Loanwords usually take neither お/ご (✗ おコーヒー, ✗ おビール). ⚠️ Honorific pattern 「お ＋ verb masu-form ＋ になる」 (お帰りになる), humble 「お ＋ verb masu-form ＋ する」 (お持ちする). The foundation of N4-N3 polite expression.
📌 How to Connect
| Prefix | Attaches to | Example |
|---|---|---|
| お (native/kun) | native nouns/adjectives | お名前, お水, お忙しい |
| ご (Sino/on) | Sino-Japanese nouns | ご住所, ご連絡, ご家族 |
| お (exception Sino) | conventional Sino words | お電話, お料理, お時間 |
| (loanwords) | usually neither | ✗ おコーヒー |
💬 Example Sentences
- お名前を教えていただけますか。(May I have your name?) — お (native)
- ご住所とお電話番号をご記入ください。(Please fill in your address and phone number.) — ご (Sino 住所) + お (exception 電話)
- ご連絡ありがとうございます。(Thank you for your message.) — ご (Sino 連絡)
- お水を一杯いただけますか。(May I have a glass of water?) — お (beautifying)
- 先生がお帰りになりました。(The teacher has gone home.) — お〜になる (honorific)
🔄 Compare: お vs ご vs beautifying vs honorific/humble
| Use | Rule/Function | Example |
|---|---|---|
| お (native) | attaches to kun-reading words | お名前, お水 |
| ご (Sino) | attaches to on-reading words | ご住所, ご連絡 |
| beautifying | makes speech elegant (no specific target) | お茶, お料理 |
| honorific/humble | respect to the other/humbling oneself | お名前 (honorific), ご説明する (humble) |
⚠️ Common Mistakes
- お for native, ご for Sino: お名前 (native), ご住所 (Sino); judge by kun-/on-reading.
- Exception Sino words use お: お電話, お料理, お時間, お返事 (Sino-Japanese yet using お, conventional).
- Loanwords take neither: ✗ おコーヒー, ✗ おビール (loanwords usually take no お/ご).
- Overuse sounds rude: not all words can take them; overusing お/ご sounds affected.
💡 Nuance & When to Use
「お」「ご」 are prefixes that make words polite, elegant. Basic rule: お attaches to native words (kun-reading: お名前, お水), ご attaches to Sino-Japanese words (on-reading: ご住所, ご連絡). Two functions: beautifying language (making speech elegant: お茶, お料理), honorific/humble language (respect to the other: お名前; humbling: ご説明する). ⚠️ Exceptions: some Sino-Japanese words conventionally use お (お電話, お料理, お時間); loanwords usually take neither. The foundation of N4-N3 polite expression. A must.
🎯 JLPT Exam Tips
- N4-N3 core: お attaches to native words (kun-reading: お名前), ご attaches to Sino-Japanese words (on-reading: ご住所); judge by kun-/on-reading.
- Two functions: beautifying language (making speech elegant, お茶), honorific/humble language (respect to the other/humbling oneself).
- Exceptions: some Sino-Japanese words conventionally use お (お電話, お料理, お時間); loanwords usually take neither (✗ おコーヒー).
🖊️ Practice Quiz
Q1. 「___住所を教えていただけますか。」(your address, keigo)
(A) お (B) ご (C) either A or B (D) none needed
Q2. 「___連絡ありがとうございます。」(thank you for your contact)
(A) お (B) ご (C) either A or B (D) none needed
Q3. How do you make 「コーヒーでもいかがですか」 more polite?
(A) おコーヒーでもいかがですか
(B) ごコーヒーでもいかがですか
(C) コーヒーでもいかがでしょうか
(D) A is most polite
Q4. The rule is お〜 for native (wago) words and ご〜 for Sino (kango) words. Why is 「電話」 given お?
(A) 電話 is a native word
(B) a customary exception (電話 is Sino but conventionally takes お)
(C) ご電話 is also fine
(D) 電話 needs no prefix
Q5. 「先生が___帰りに___なりました。」(the teacher went home, respectful)
(A) ご・なさい (B) お・なり (C) お・なった (D) ご・に
Answer Key
1. (B) ご ── 住所 (じゅうしょ) is a Sino word (on'yomi), so ご: ご住所.
2. (B) ご ── 連絡 (れんらく) is a Sino word, so ご: ご連絡.
3. (C) コーヒーでもいかがでしょうか ── loanwords don't take お/ご; politeness comes from でしょうか.
4. (B) ── a customary exception: 電話 is Sino but conventionally takes お (お電話).
5. (B) お・なり ── お ＋ 帰り ＋ になる = the respectful 「お〜になる」 pattern: お帰りになりました.