Third-person singular simple present indicative form of pair.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "pairs" in a sentence
"When the stone is slightly moved, these pairs of reflections will travel _together as pairs_ and not tend to separate."
"This means that if someone here is interested to buy 4 pairs, it is possible, ie 3 + 4 = 7 * purchase order closes once i receive payment for the 4 pairs*"
"After sheep, the second most populous wildlife were grouse, which regularly flew out in pairs from the undergrowth with a violent batter of wings."