to nod one's head, typically to show agreement or to greet someone

to nod one's head and bow repeatedly; used to describe someone being overly polite, servile, or fawning

A casual acquaintance or someone known only well enough to exchange nods of greeting.

To nod one's head to show that a point has been understood; describes someone who is quick-witted and can readily grasp another person's meaning or intentions.

(idiom) so persuasive that even a stubborn person is convinced; literally: even the stubborn stones nod their heads. This refers to a legend about a monk whose explanation of Buddhist scripture was so profound that even inanimate rocks moved in agreement.

To nod one's head as a greeting or to signal someone to come closer

to show approval or admiration by nodding one's head and smacking one's lips

To pass a high-level imperial or academic examination; literally "the red-robed official nods his head."

The act of nodding, or a vibration in a nodding motion.

To nod one's head as a sign of agreement or praise

(literary) describes a powerful influence or sincerity that can move even the most stubborn or unfeeling person; based on a story of a monk whose preaching was so persuasive that stones nodded in agreement