Meaning of PAIR in English
1》 a set of two things used together or regarded as a unit.
2》 an article consisting of two joined or corresponding parts.
3》 two people or animals related in some way or considered together.
↘two members of a legislative assembly on opposing sides who absent themselves from voting by mutual arrangement, in order to maintain the relative position of the parties.
■ verb join or connect to form a ~.
↘( ~ off/up ) form a couple.
~wise adjective & adverb
ME: from OFr. ~e , from L. paria 'equal things', neut. plural of par 'equal'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004