
Puff up
Physical Change
Used when something physiologically expands due to air or gas.

When startled, the pufferfish puffs up to appear larger.
Emotional Display
Can describe someone showing emotions like pride or anger.

She puffed up with pride after receiving the compliment.
Visual Illusion
Used to mean making something look bigger than it really is.

He puffed up the pillow to make the couch look cozier.
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension