nodded
v. B1 Intermediate US //ˈnɑdəd// UK //nˈɒdɪd// nod·ded
v. moved your head up and down to show that you agree or understand. It is a quick way to say 'yes' without speaking.
v. the past tense of 'nod'; refers to a brief downward and upward movement of the head. Often indicates agreement, acknowledgement, or a greeting.
She nodded when I asked if she was ready.
The manager listened to the proposal and nodded slowly to show he understood the main points.
As the lecturer concluded the complex explanation, several students in the front row nodded in unison, signaling their comprehension of the theory.
Usage
Often used with 'at' to indicate the person being addressed, or 'in' to describe the manner (e.g., 'nodded in agreement').