a removable or hinged cover for the top of a container:a dustbin lid
(usually lids) an eyelid:eyes hooded beneath heavy lids
the top crust of a pie.
Botany the operculum of a moss capsule.
informal a hat or crash helmet:I’ve got a lid for you to try on
keep a (or the) lid on
informal
keep (an emotion or process) from going out of control:she couldn’t keep the lid on her simmering anger
keep secret:she keeps a very tight lid on her private life
put a (or the) lid on
informal put a stop to:it’s time to put the lid on all the talk
put the lid (or the tin lid) on it
British informal be the culmination of a series of acts or events that makes a situation unbearable:he has been in a lot of pain and this just puts the lid on it
take (or lift) the lid off (or lift the lid on)
informal reveal unwelcome secrets about:the programme lifts the lid on the true scale of the bungled police investigation
