こくんnod deeply, , glugging, drinking deeply

生徒(せいと)が先生(せんせい)にコクンと頷(うなず)いた。

The student deeply nodded to the teacher. {nod deeply, , glugging, drinking deeply}

母(はは)の注意(ちゅうい)を聞(き)き、子供(こども)がコクンと頷(うなず)いた。

Listening to his mother's warning, the child nodded deeply. {nod deeply, , glugging, drinking deeply}

何(なん)度(ど)もコクンとしながら部長(ぶちょう)の説明(せつめい)を聞(き)きました。

I listened to the department head's explanation, nodding deeply over and over again. {nod deeply, , glugging, drinking deeply}

電車(でんしゃ)に揺(ゆ)られて眠(ねむ)くなってきて、思(おも)わずコクンとしてしまった。

Being rocked by the train, I started to feel sleepy and unintentionally gave a deep nod. {nod deeply, , glugging, drinking deeply}

先生(せんせい)の説明(せつめい)にコクンと頷(うなず)いたのはいいものの、本当(ほんとう)は理解(りかい)していない。

Although I nodded deeply at the teacher's explanation, I actually didn't understand. {nod deeply, , glugging, drinking deeply}