nod Synonyms

salaam supination vellication wave wink yawn yes zed inclination acknowledgement seal of approval handshake snore snooze salutation sanction sandman semaphore senna shrug siesta sign signal sleep slumber bell buoy unlax nihil obstat nod off doze off fall asleep flake out niddle-noddle red light shake hands shut-eye shuteye say hello high-five curtsey affirmativeness drop off authentication all clear okay clean bill of health rubber stamp catnap legalisation blue peter