Swell up

Pronunciation: /ˈswɛɫ ˈəp/

Swell up (verb)

  1. To become larger and rounder because of liquid or air building inside.
  2. For a feeling to grow strongly and quickly, until it is hard to control.
  3. For a group or number to increase quickly, becoming much bigger than before.

Examples

  • My ankle swells up after I run too far.
  • The wound swells up when the skin is irritated.