keep something under wraps

keep something under wraps

COMMON If someone keeps something under wraps, they keep it secret. The producers have tried to keep details of the film's cast under wraps. The official report has been kept under wraps for months by legal objections from the company. Note: You can also say that something remains under wraps. It was essential that the plans remained under wraps.
See also: keep, something, wrap

keep something under wraps

conceal or be secretive about something. informal
1998 New Scientist The key to the fuel is a catalyst that the Navy is keeping under wraps.
See also: keep, something, wrap
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