Meaning of the word "follow up on" in English

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

follow up on

US /ˈfɑloʊ ʌp ɑn/
UK /ˈfɒləʊ ʌp ɒn/
"follow up on" picture

Phrasal Verb

to take further action concerning something that has already been done or started

Example:
I need to follow up on that email I sent last week.
The manager asked me to follow up on the client's request.