To inadvertently reveal any secret, particularly a secret that puts one at an advantage or disadvantage.
In card playing, to accidentally reveal one's cards or hand.
To show openly; to disclose; to reveal.
To remove one's hat or cap as a mark of respect.
To reveal the identity of.
To expose the genitalia.
To remove a cover from.
To expose (lines of formation of troops) successively by the wheeling to right or left of the lines in front.