Synonyms for Aerate (same or very similar meaning)
WordNet sense 1 (expose to fresh air):
air, air outWordNet sense 2 (aerate (sewage) so as to favor the growth of organisms that decompose organic matter):
activateWordNet sense 3 (impregnate, combine, or supply with oxygen):
oxygenate, oxygenise, oxygenizeFrom the ODE community, based on WordNetadd/edit