Verb

1. air out, air, aerate, expose

usage: expose to fresh air; "aerate your old sneakers"

2. activate, aerate, change, alter, modify

usage: aerate (sewage) so as to favor the growth of organisms that decompose organic matter

3. oxygenate, oxygenize, oxygenise, aerate, process, treat

usage: impregnate, combine, or supply with oxygen; "oxygenate blood"

See also: aerate (Dictionary)