He had two pairs in his hand.

He was dealt pocket pairs in back-to-back hands.

There are many au pairs in this neighborhood.

During meiosis, homologous pairs of chromosomes align and exchange genetic material.

The genome of this organism is composed of several kilobase pairs.

The coxless pairs competed fiercely in the rowing race.

There are many inversion pairs in this sentence.

The king pairs ruled over their kingdoms with wisdom and strength.

Superconductivity is characterized by the formation of Cooper pairs.

She bought two pairs of pants.