How to say "chin" in Japanese

• 顎あごJLPT N1approx.Common
  nounThe common word for the jaw, which also covers the chin as the front part of the lower jaw. Use it for the chin in everyday contexts, such as resting a hand on it.
  私は彼かれのあごに１発はつ食くらわしてやった。↗

  I landed him a blow on the chin.
• チン
  nounA less common word for the chin itself, as distinct from the jaw. Since 顎 covers the chin in everyday use, this is seldom the word you want.
• おとがい
  nounThe chin as an anatomical part, corresponding to mentum; it also covers the lower jaw. Less common than 顎 and normally written in kana alone, it suits anatomical or medical description.

Use 顎, the common everyday word, for the chin in ordinary contexts; turn to 「おとがい」 for the anatomical mentum, while 「チン」 is a less common word for the chin itself.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 顎あごjaw
• チンchin
• おとがい(lower) jaw