| Noun | 1. | nod - a sign of assent or salutation or commandgesture, motion - the use of movements (especially of the hands) to communicate familiar or prearranged signals | |
| 2. | nod - the act of nodding the headinclining, inclination - the act of inclining; bending forward; "an inclination of his head indicated his agreement" | |
| Verb | 1. | nod - express or signify by nodding; "He nodded his approval" | |
| 2. | nod - lower and raise the head, as to indicate assent or agreement or confirmation; "The teacher nodded when the student gave the right answer" | |
| 3. | nod - let the head fall forward through drowsiness; "The old man was nodding in his chair" | |
| 4. | nod - sway gently back and forth, as is in a nodding motion; "the flowers were nodding in the breeze"move - move so as to change position, perform a nontranslational motion; "He moved his hand slightly to the right" | |
| 5. | nod - be almost asleep; "The old man sat nodding by the fireplace"drowse - be on the verge of sleeping; "The students were drowsing in the 8 AM class" | |