Entry Word: wag

Function: noun

Meaning: 1 a quick jerky movement from side to side or up and down <the dog gave its tail a single wag before it flopped back down>

Synonyms switch, waggle

Related Words oscillation, swing; flap, flutter, wave; jerk, shake, twitch, wiggle

2 a person (as a writer) noted for or specializing in humor <some wag wrote a droll piece of political satire for the newspaper> — see humorist