友達 vs 友人 vs 友: Three Ways to Say “Friend” in Japanese

Yuka

What’s the difference between 友達, 友人, and 友? They all mean “friend.”

Rei

友達 is your everyday casual word. 友人 is the formal adult version you’d use in writing or professional contexts. 友 is the literary/poetic short form — you’d see it in poetry, song lyrics, or formal speeches.

What Does 友達 (tomodachi) Mean?

友達 is the most common, everyday word for friend. It is used by all ages, from children to adults, and works in both casual and semi-formal contexts. The 達 (tachi) suffix indicates a group or person concept. It is the word you’ll use most often.

• 友達と遊んだ。 — I hung out with friends.
• 新しい友達ができた。 — I made a new friend.
• 親友 (shinyuu) — Close friend / best friend (compound with 友)
• 友達になろう！ — Let’s be friends!

What Does 友人 (yuujin) Mean?

友人 is the more formal word for friend. It is commonly used by adults in writing, business situations, and when speaking in a polished or respectful register. It refers to the same relationship as 友達 but carries more weight and formality.

• 友人の結婚式に出席した。 — I attended my friend’s wedding.
• こちらは私の友人の田中さんです。 — This is my friend, Tanaka-san. (introducing someone formally)
• 長年の友人。 — A long-time friend.
• 友人から連絡があった。 — I heard from a friend.

What Does 友 (tomo) Mean?

友 is the base kanji meaning friend. On its own, it sounds literary, poetic, or archaic. You will find it in song lyrics, poetry, speeches, and traditional phrases. It can also appear in compound words.

• 友よ、また会おう。 — Friend, let us meet again. (literary/poetic)
• 飲み友 (nomitomo) — Drinking buddy (compound slang)
• 旅は道連れ、世は情け。 — A journey companion, a world of kindness. (proverb)
• 悪友 (akuyuu) — Bad influence friend (compound with 友)

Comparison

Yuka

When I introduce a friend at work, should I say 友達 or 友人?

Rei

友人 is more appropriate in professional settings — “こちらは私の友人です。” Using 友達 is understood but sounds a bit casual. Among colleagues of similar rank, 友達でもある田中さん (Tanaka, who is also a friend) works too.

Quick Quiz

Fill in: 友達, 友人, or 友?

• 1. 彼女は私の___で、一緒によく遊ぶ。 (She is my friend and we often hang out together.) [casual]
• 2. 本日は___の結婚式にお招きいただき… (Today, I was invited to my friend’s wedding…) [formal speech]
• 3. 昨日___と映画を見た。 (I watched a movie with a friend yesterday.) [casual]
• 4. ___よ、離れても忘れないよ。 (Friend, even if we’re apart I won’t forget you.) [lyrical]

Answers: 1. 友達　2. 友人　3. 友達　4. 友

📖 Want to take your Japanese further? Practice speaking with a professional Japanese tutor on italki — affordable 1-on-1 online lessons at your own pace.

Summary

あわせて読みたい

“chijin” vs. “shiriai”：What’s The Difference Between These How do you describe someone you know but are not particularly close to? In English we might say "an acquaintance," but Japanese has two words for this: 知人...

あわせて読みたい

Chigai vs Chigau Test Both 違い（ちがい） and 違う（ちがう） come from the same root and are often translated as "difference" or "to differ" in English. But learners frequently mi...