(baseball) The moment when the pitcher begins the motion of pitching the ball and, by the rules of the game, has committed himself to throwing the pitch.

The time when an airplane, etc, is scheduled to arrive.

(historical) The followers of Hasan-i Sabbah, the Sheikh of Alamut.

worthy of being remembered mentally or in writing.

(computing, informal) An error screen displayed by some operating systems, especially Microsoft Windows, after encountering an unrecoverable error which causes the system to shut down.

(Australia, attributive) A tax avoidance scheme from the 1970s.

(idiomatic) To complete the greater part of (a project). / To overburden (a person).

(Australia, rhyming slang) A suit.

Any time so long ago that history is no longer clear, as though lost in a mist or fog.

(evolutionary theory) Natural selection.