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"pair" is also used as a crossword clue. If that's what you saw, the answer is often couple (6 letters).
Definitions
bring two objects, ideas, or people together
Word origin
From Middle English pairen, peiren, shortened form of apeiren, empeiren, from Old French empeirier, empoirier, from Late Latin peiōrō.
Used in a sentence
“Ting, ting, ting! went the bell again. Every body sat down; the curtain shook, rose sufficiently high to display several pair of yellow boots paddling about, and there it remained.”
“Day after day, with the stamp and shuffle of sixty pair of bare feet behind me, each pair under a 60-lb. load.”
“So, one evening, I made a speech in English with gestures, not one of which was lost to the sixty pairs of eyes before me, and the next morning I started the hammock off in front all right.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer8 curated clues
01“Couple of matching items”4 letters
02“Matching duo”4 letters
03“Matching two”4 letters
04“Two matched items”4 letters
05“Two matching items”4 letters
06“Two matching things”4 letters
07“Two of a kind”4 letters
08“Set of two”4 letters
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