| Main Entry: | |
| Part of Speech: | noun |
| Definition: | gesture of the head |
| Synonyms: | acceptance, acknowledgment, affirmative, beckon, bow, dip, greeting, inclination, indication, permission, salute, sign, signal, yes |
| Main Entry: | nod |
| Part of Speech: | verb |
| Definition: | fall asleep |
| Synonyms: | be sleepy, become inattentive, doze, drift, drift off, droop, drowse, nap, sleep, slump |
| Main Entry: | acceptance |
| Part of Speech: | noun |
| Definition: | agreement, taking |
| Synonyms: | accepting, acknowledgment, acquiring, admission, approval, assent, compliance, consent, cooperation, gaining, getting, go-ahead, green light, nod, obtaining, okay, permission, receipt, receiving, reception, recognition, securing, taking on, undertaking, yes |
| Antonyms: | disagreement, dissent, refusal |
| Main Entry: | acknowledgment |
| Part of Speech: | noun |
| Definition: | physical symbol of recognition |
| Synonyms: | acclamation, addressing, answer, apology, applause, appreciation, bestowal, bow, card, confession, contract, credit, gift, gratitude, greeting, guarantee, hail, hailing, letter, nod, notice, reaction, receipt, reply, response, return, salutation, salute, signature, statement, support, thanks, token |
| Main Entry: | alarm |
| Part of Speech: | noun |
| Definition: | warning, signaling device |
| Synonyms: | Mayday, SOS, alert, bell, blast, buzzer, call, caution, clock, cry, drum, flap, flash*, forewarning, gong, high sign, horn, nod, scramble*, scream, shout, sign, signal, siren, squeal, tip, tip off, tocsin, trumpet, warning, whistle, wink, yell |
| Main Entry: | assent |
| Part of Speech: | noun |
| Definition: | agreement |
| Synonyms: | acceptance, accession, accord, acknowledgment, acquiescence, admission, affirmation, approval, authorization, compliance, concurrence, consent, nod, permission, sanction |
| Antonyms: | disagreement, dissent, rejection |
| Main Entry: | beckon |
| Part of Speech: | verb |
| Definition: | call, signal, or lure |
| Synonyms: | allure, ask, attract, bid, coax, command, demand, draw, entice, gesticulate, gesture, invite, motion, nod, pull, sign, summon, tempt, wave |
| Main Entry: | bob |
| Part of Speech: | verb |
| Definition: | bounce up and down |
| Synonyms: | bow, duck, genuflect, hop, jerk, jounce, leap, nod, oscillate, quaver, quiver, ricochet, seesaw, skip, waggle, weave, wobble |
| Main Entry: | bow |
| Part of Speech: | noun |
| Definition: | bend from waist |
| Synonyms: | angle, arc, arch, bend, bending, bob, curtsy, curvation, curvature, curve, flection, flexure, genuflection, inclination, kowtow, nod, obeisance, round, salaam, turn, turning |
| Antonyms: | straighten |