noun

an apparatus with rotating blades that creates a current of air for cooling or ventilation.

a couple of ceiling fans, lazily turning

air cooler,air conditioner,ventilator,blower,aerator,punkah

verb

cool (someone or something) by waving an object to create a current of air.

he fanned himself with his hat

cool,air,aerate,blow,ventilate,freshen,refresh