The large door of a barn. / (humorous) Something large enough that a miss ought to be impossible. / (cricket) A player who blocks every ball. / (euphemistic, humorous) The groin area of a pair of pants.

(transitive, filmmaking) To apply or adjust the barn doors as part of lighting.

(chiefly in the plural) A sliding door, usually made of glass, that opens onto a patio, deck or garden.

(US) Synonym of French window

(literally) The door at the main entrance to a building or house, normally fronts onto a street. / (by extension) The entire main entrance to a building or house.

A subsidiary entrance to a building or house at its rear, normally away from the street. / A means of access, often secret and unprotected, to something.

(US, baseball) The path of a pitch which starts outside and then slides over the plate. / Achieved through indirect means.

To attempt to accomplish by indirect means, especially when direct means are proscribed.

Alternative form of trapdoor

(idiomatic) About to die; in a life-threatening state of health.