This kanji is a pictograph representing an open mouth.

It can occur as a radical on the left side of kanji, called 口偏 (くちへん), often giving meanings related to speaking or the mouth generally, as in 叱 scold, 囁 whisper, 鳴 chirp, 味 flavor, or 吸 inhale.

Vocabulary

Vocabulary Reading Meaning
⭐ 口 くち mouth

口を大きく開けて。

Open your mouth wide.🔗

口の周りにご飯粒がついてるよ。

You have grains of rice stuck around your mouth.🔗
⭐ 人口 じんこう population

カナダの人口は約２６００万人です。

The population of Canada is about 26 million.🔗
出口 でぐち exit, way out, outlet

すみません、出口はどこですか？

Excuse me, where's the exit?🔗
口述 こうじゅつ dictation, verbal statement
開口 かいこう opening, aperture (e.g. camera); opening one's mouth
口調 くちょう tone (e.g. of voice), (verbal) expression
口伝 くでん oral tradition
異口同音 いくどうおん in concert, with one voice, unanimously
口絵 くちえ frontispiece