verb · to intentionally release information or spread rumors to gauge reaction or tip someone off

公司高层向媒体放风，暗示即将进行裁员。

verb · to allow prisoners to leave their cells for exercise or fresh air

囚犯每天下午有半个小时的放风时间。

verb · to allow in fresh air or air out a room

屋里太闷了，开窗放放风吧。