Meaning of the word "well up" in English

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

well up

US /wɛl ʌp/
UK /wɛl ʌp/

Phrasal Verb

to rise to the surface and flow out, typically of a liquid or emotion

Example:
Tears started to well up in her eyes as she heard the sad news.
A feeling of anger began to well up inside him.