ventilate

verb

1 the conservatory will become stiflingly hot if not properly ventilated:

aerate, air, oxygenate, air-condition, fan, freshen, refresh, cool.

2 the workers ventilated their discontent:

express, give expression to, air, give an airing to, bring into the open, raise, register, lodge, bring up, come out with, reveal, assert, declare, communicate, utter, voice, give voice to, put into words, verbalize, talk about, discuss, debate, talk over.