Meaning of the word "pair up" in English

What does "pair up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

pair up

US /pɛr ʌp/
UK /pɛər ʌp/

Phrasal Verb

to form a pair or to cause people or things to form pairs

Example:
The teacher asked the students to pair up for the group project.
Let's pair up the socks after washing them.