n. A hostile or predatory incursion; especially, an inroad or incursion of mounted men; a swooping assault for injury or plunder; a foray.n. Hence A sudden onset in general; an irruption for or as if for assault or seizure; a descent made in an unexpected or undesired manner: as, a police raid upon a gambling-house.To go upon a raid; engage in a sudden hostile or disturbing incursion, foray, or descent.To make a raid or hostile attack upon; encroach upon by foray or incursion.Hence To attack in any way; affect injuriously by sudden or covert assault or invasion of any kind: as, to raid a gambling-house.