(idiomatic, transitive) To replace; to act as a double or substitute for.

A person of similar size and shape to an actor who "stands in" for that actor during the lengthy process of setting up a shot, but who, unlike a double, does not appear in the film. / A substitute.

A substitute; a replacement.

To substitute for; to replace; (theater) to serve as an understudy. / To make one of a party in a bet or other speculation. / To take a side in a dispute.

(intransitive, copulative) To support oneself on the feet in an erect position. / (intransitive) To rise to one’s feet; to stand up. / (intransitive, copulative) To remain motionless.

The act of standing. / A defensive position or effort. / A resolute, unwavering position; firm opinion; action for a purpose in the face of opposition.

(US, Scotland, dated) A container which stands upright, such as a barrel or cask. / (obsolete) A weight of from two hundred and fifty to three hundred pounds, used in weighing pitch.

(idiomatic, intransitive) To wait in expectation of some event; to be ready. / (idiomatic, transitive) To remain loyal or faithful to.

present participle of stand

Erect, not cut down. / Performed from an erect position. / Remaining in force or status. / Stagnant; not moving or flowing. / Not transitory; not liable to fade or vanish; lasting. / Not movable; fixed.