An instance of inclining the head up and down, as to indicate agreement, or as a cursory greeting. / A reference or allusion to something. / A nomination. / (figuratively) Approval.

(transitive, intransitive) To incline the head up and down, as to indicate agreement. / (transitive, intransitive) To briefly incline the head downwards as a cursory greeting.

In a stuporous state following a high from heroin.

(UK, informal) With no discussion or controversy.

(law) Initialism of notice Of disagreement; filed by an appellant in response to a denial of veteran's benefits in United States law. / (military, US) Initialism of Night Optical/Observation Device.

simple past tense and past participle of nod

(botany) Having the flower facing downwards.

The act by which one nods.

present participle of nod

Third-person singular simple present indicative form of nod