Meaning of the word "a wave of" in English

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

a wave of

US /ə weɪv əv/
UK /ə weɪv əv/

Phrase

a sudden increase in a particular activity or feeling

Example:
There was a wave of excitement when the news was announced.
The city experienced a wave of protests last month.