口(くち)にする

くちにする
expression, suru verb
to say; to mention; to put into words; to eat; to drink; to put in one's mouth
他動詞 transitivecommunicationfood
Conjugation
AffirmativeNegative
Present口(くち)にする口(くち)にしない
Present polite口(くち)にします口(くち)にしません
Past口(くち)にした口(くち)にしなかった
Past polite口(くち)にしました口(くち)にしませんでした
て form口(くち)にして口(くち)にしなくて
ている present口(くち)にしている口(くち)にしていない
ている polite口(くち)にしています口(くち)にしていません
ている past口(くち)にしていた口(くち)にしていなかった
ている past polite口(くち)にしていました口(くち)にしていませんでした
Conditional ば口(くち)にすれば口(くち)にしなければ
Conditional たら口(くち)にしたら口(くち)にしなかったら
Volitional口(くち)にしよう—
Volitional polite口(くち)にしましょう—
Potential口(くち)にできる口(くち)にできない
Passive口(くち)にされる口(くち)にされない
Causative口(くち)にさせる口(くち)にさせない
Imperative口(くち)にしろ口(くち)にするな
1. to say; to mention; to put into words
To verbally express or bring up a topic, especially one that might otherwise remain unspoken.
He voiced his dissatisfaction.
Nobody mentioned that topic.
She never again spoke of that day they parted.
2. to eat; to drink; to put in one's mouth
To consume food or drink, with a slightly refined nuance of literally placing something in one's mouth.
I haven't eaten anything since morning.
Tasting the local cuisine after so long, a wave of nostalgia welled up inside me.

An idiomatic expression using 口(くち) (mouth) + にする that has two distinct meanings depending on context. In sense 1, it means to verbalize or express something — to "put something into words." In sense 2, it means to eat or drink — to literally put something in one's mouth.

Usage

  • Sense 1 is often used in negative contexts (口(くち)にしない = to not mention, to keep silent about)
  • Sense 2 is slightly more formal or literary than 食(た)べる or 飲(の)む

Common collocations

Similar words

  • 言(い)う: the most general word for speaking; 口(くち)にする implies deliberately putting thoughts into words
  • 述(の)べる: more formal, used for expressing opinions or facts
  • 食(た)べる: the standard word for eating; 口(くち)にする (sense 2) has a more refined or restrained nuance