present participle of blow someone's cover

A removable plate used to form the lid over the opening of a manhole.

(philately, informal) An envelope used by the postal authorities to convey a letter damaged during sorting.

(historical) An opponent of the Covenanters.

(topology) Given a collection S of subsets of a set X: a subcollection S^* of S such that each element in X is contained in exactly one subset in S^*.

Synonym of picanha (“cut of beef”)