A response or reply; something said or done in reaction to a statement or question. / A solution to a problem.

(transitive, intransitive) To make a reply or response to. / (transitive) To speak in defence against; to reply to in defence.

Required to justify one's actions (to somebody); accountable, responsible. / (of a question) Able to be answered. / (archaic) Correspondent, in accordance; comparable (to).

(nautical, intransitive, said of a ship) To respond to a movement of the helm by changing direction; only happens if the ship has steerageway.

(mathematics) A mathematical assumption used to describe a certain phenomenon, posited in order to help provisionally solve an equation or other problem.

(astronomy) The most protruding part of planetary rings as seen from a distance, perceived to project like handles on either side of the disc of the planet. / (anatomy) A loop-shaped structure.

(philosophy, Kantianism) Sense-perception.

Anselmian.

(idiomatic, euphemistic) To satisfy a bodily urge to urinate or defecate.

present participle of answer