prohibit /pra'hibit US: prau-; prohibit/ vt [VP6A, 14] ~ sb (from doing sth), forbid (esp by rules or regulations); say that sth must not be done, that sb must not do sth: 禁止; 阻止： Smoking strictly ~ed, 嚴(yán)禁吸煙。 Children are ~ed from buying cigarettes. 禁止兒童購買香煙。