- 1 ventilate something to allow fresh air to enter and move around a room, building, etc. a well-ventilated room The bathroom is ventilated with an extractor fan.
- 2ventilate something (formal) to express your feelings or opinions publicly synonym air
NAmE//ˈvɛntlˌeɪt//Verb Forms present simple I / you / we / they ventilate
he / she / it ventilates
past simple ventilated
-ing form ventilating
ventilationjump to other results
NAmE//ˌvɛntlˈeɪʃn//noun [uncountable] a ventilation shaft Make sure that there is adequate ventilation in the room before using the paint.