n. 25B6; verb
she nodded her head : INCLINE, bob, bow, dip, wag.
he nodded to me to start : SIGNAL, gesture, gesticulate, motion, sign, indicate.
25B6; noun
she gave a nod to the manager : SIGNAL, indication, sign, cue; gesture.
a quick nod of his head : INCLINATION, bob, bow, dip.
25A0; give someone the nod
the winger was given the nod : SELECT, choose, pick, go for; Brit. cap.
the Lords will give the treaty the nod : APPROVE, agree to, sanction, ratify, endorse, rubber-stamp; informal OK, give something the green light, give something the thumbs up.
25A0; nod off FALL ASLEEP, go to sleep, doze off, drop off; informal drift off, flake out, go out like a light; N. Amer. informal sack out.