n.
a covering that serves to conceal or shelter something
"under cover of darkness"
同义词：screencovertconcealment
bedding that keeps a person warm in bed
"he pulled the covers over his head and went to sleep"
同义词：blanket
the act of concealing the existence of something by obstructing the view of it
"the cover concealed their guns from enemy aircraft"
同义词：coveringscreeningmasking
the protective covering on the front, back, and spine of a book
同义词：bindingbook bindingback
a natural object that covers or envelops
"under a covering of dust"; "the fox was flushed from its cover"
同义词：coveringnatural covering
covering for a hole (especially a hole in the top of a container)
"put the cover back on the kettle"
同义词：top
fire that makes it difficult for the enemy to fire on your own individuals or formations
"artillery provided covering fire for the withdrawal"
同义词：covering fire
a fixed charge by a restaurant or night club over and above the charge for food and drink
同义词：cover charge
a recording of a song that was first recorded or made popular by somebody else
"they made a cover of a Beatles' song"
同义词：cover versioncover song
a false identity and background (especially one created for an undercover agent)
"her new name and passport are cover for her next assignment"
