under wraps

Idioms  

1. Concealed or secret, as in The design for the new plant is under wraps. This idiom frequently is put as keep under wraps, meaning “keep secret,” as in Let's keep this theory under wraps until we've tested it sufficiently. It alludes to covering something completely by wrapping it up. [1930s]

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Example Sentences

Cannes had kept the award under wraps until the actor walked on stage for the premiere wearing a black suit and a white beret.

From Barron's • May 15, 2026

The letter named some high-profile investors who had agreed to participate, something usually kept under wraps.

From The Wall Street Journal • Apr. 10, 2026

The couple, who have kept their romance under wraps, were spotted together at the Khaite Fall/Winter 2026 fashion show during New York Fashion Week in February.

From Los Angeles Times • Apr. 8, 2026

Elz, who keeps her full name under wraps, turned her online success into a career as a host.

From BBC • Mar. 26, 2026

What he had was a little group of active and potential customers under wraps.

From "Cannery Row" by John Steinbeck