- 1mouth something + speech to move your lips as if you were saying something, but without making a sound He mouthed a few obscenities at us and then moved off.
- 2mouth something + speech (disapproving) to say something that you do not really feel, believe, or understand They're just mouthing empty slogans. Phrasal Verbsmouth off (at somebody/about something)
NAmE//maʊð//Verb Forms present simple I / you / we / they mouth
he / she / it mouths
past simple mouthed
-ing form mouthing