NOD

vt to cause to bend.

2. nod ·vi to be drowsy or dull; to be careless.

3. nod ·vt to signify by a nod; as, to nod approbation.

4. nod ·noun a dropping or bending forward of the upper oart or top of anything.

5. nod ·vi to bend or incline the upper part, with a quick motion; as, nodding plumes.

6. nod ·vt to incline or bend, as the head or top; to make a motion of assent, of salutation, or of drowsiness with; as, to nod the head.

7. nod ·noun a quick or slight downward or forward motion of the head, in assent, in familiar salutation, in drowsiness, or in giving a signal, or a command.

8. nod ·vi to incline the head with a quick motion; to make a slight bow; to make a motion of assent, of salutation, or of drowsiness, with the head; as, to nod at one.