Meaning of the word "call upon" in English

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

call upon

US /kɔl əˈpɑn/
UK /kɔːl əˈpɒn/

Phrasal Verb

1.

to formally ask someone to do something

Example:
The judge will call upon the jury to deliver their verdict.
We must call upon all citizens to help in this crisis.
2.

to visit someone, especially for a short time

Example:
I decided to call upon my old friend while I was in town.
The doctor will call upon you shortly.