a ball of air or gas in liquid:
When water boils, bubbles rise to the surface.
She was blowing bubbles in her milk with a straw.
a small amount of air trapped in a solid substance:
Examine the glass carefully for bubbles.
a small amount of a feeling:
A bubble of anger rose in Pol's throat.
4 also speech bubble
a circle around the words said by someone in acartoon
used for saying that a very successful or happy period of time suddenly ends:
The bubble has finally burst in the mobile phone industry.
to make someone suddenly realize that something is not as good as they thought it was
Definition from the Longma