同 士(どうし)

どうし

noun, suffix

fellow, comrade

See also: 同志(どうし) (comrade, like-minded)

1. fellow, comrade, companion

People who share the same status, characteristic, or situation. Often used as a suffix meaning 'among ~' or '~ with each other'.

男(おとこ)同士(どうし)の会話(かいわ)だ。

It's a conversation between men.

仲間(なかま)同士(どうし)で助(たす)け合(あ)おう。

Let's help each other as comrades.

友達(ともだち)同士(どうし)で旅行(りょこう)に行(い)った。

I went on a trip with friends.

友達(ともだち)同士(どうし) = among friends

Usage: 同士(どうし) is often used as a suffix attached to nouns to mean 'among ~' or '~ with each other'. It emphasizes shared membership in a group.

Common patterns

〜同士(どうし) (among ~, between ~)
友達(ともだち)同士(どうし) (among friends)
仲間(なかま)同士(どうし) (among companions)
男(おとこ)/女(おんな)同士(どうし) (among men/women)
恋人(こいびと)同士(どうし) (as lovers)
親子(おやこ)同士(どうし) (between parent and child)

Watch out

動詞(どうし) (verb) - same reading, different meaning

Similar words

仲間(なかま) (companion, colleague)
同僚(どうりょう) (colleague at work)
お互(たが)い (each other, mutual)

Related Words

Compare: 動詞(どうし) (verb (homophone))

Related: 仲間(なかま) (companion)

Compare: 同僚(どうりょう) (colleague at work)

Compare: お互(たが)い (each other, mutual)

general

Added 2026.1.12 18:52 · Revised 2026.9.2 12:02

03000/03474_doushi