(transitive) To put into pairs; to put into a group of two. / (intransitive) To get into pairs; to join together to make a group of two.

A form of electrical connection in which two insulated conductors are twisted together for the purpose of improving immunity to interference.

plural of Cooper pair

plural of slot pair

(aviation) The commercial rights for an airline to take off and land planes at a particular airport at a particular time.

(British spelling) plural of pair of colours

(American spelling) plural of pair of colors

(historical) A turn-out of a carriage and two horses.

(computing, programming) A software development technique, part of extreme programming, in which two programmers work together at a single keyboard, one coding while the other observes and reviews. The roles are often switched at regular intervals.

A pair of twins, one male and one female. / Two siblings, one male and one female.