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Phrase(s): *in an ivory tower
Fig. in a place, such as a university, where one can be aloof from the realities of living. (*Typically: be ~; dwell ~; live ~; work ~.) • If you didn’t spend so much time in your ivory tower, you’d know what people really think! • Many professors are said to live in ivory towers. They don’t know what the real world is like.
McGrawhill's American Idioms And Phrasal Verbs