Search Result：revolving door
revolving door 
(TTS Sound)
(TTS Sound)Overview of noun revolving_door
The noun revolving door has 2 senses
- revolving door -- (an organization or institution with a high rate of turnover of personnel or membership)
- revolving door, revolver -- (a door consisting of four orthogonal partitions that rotate about a central pivot; a door designed to equalize the air pressure in tall buildings)