fan² v -nned, -nning [T] to make air move around by waving a fan, piece of paper etc 给…搧（风）: She sat back, fanning herself with a newspaper. 她坐下来，用一张报纸给自己搧风。
fan out if a group of people fan out, they move out from a central point in different directions 〔人群〕呈扇形散开: The soldiers fanned out across the moor. 士兵在荒野中呈扇形散开。