• 同時どうじ — simultaneous, at the same time
• 同感どうかん — agreement, sympathy
• 同情どうじょう — sympathy, compassion
• 同業どうぎょう — same trade, colleague in the same business
• 同意どうい — consent, agreement

More examples ▼

The kanji 同 originally shows a mouth (口) with a seal or cover, symbolizing a gathering or agreement. It conveys the idea of doing something "together" or being "the same." Over time, it came to represent shared actions, ideas, or identity — as in "same time" (同時), "agreement" (同意), or "classmate" (同級生).

同おなじ意見いけんです。
It’s the same opinion.

同時どうじに話はなしました。
They spoke at the same time.