In social networks, assortative pairings often reinforce existing divisions by connecting similar people.

I bought several pairs of pants for the camping trip.

The chef explained the accepted pairings of wines and cheeses at the tasting.

The art teacher kept several pairs of compasses in the drawer for geometry class.

The geneticist explained how base pairs determine the sequence of DNA during replication.

The instructor explained how to graph ordered pairs on the coordinate plane during class.

At temperatures near absolute zero, Cooper pairs form and allow electrons to flow without resistance through the superconducting wire.

In covalent bonds, electron pairs are shared between atoms to create stable molecules.

In the category of groups, kernel pairs often determine equivalence relations on objects.

After the trade show, the optician found several pairs of specs left on the display case.