shut sb/sth ↔ out phr v [T] 1 to prevent someone or something from going into a place 把…关在外面，遮挡: The curtains help to shut out the traffic noise. 这窗帘能阻隔交通噪音。 2 to stop yourself from seeing, hearing, or thinking about something 阻断，避免看到［听到、想到］: I tried to shut her out of my mind. 我试图不去想她。