call on
Pronunciation:
verb
Definitions
To visit (a person); to pay a call to.
Example: I really should call on my aunt more often.
Synonyms:pay a visitvisitwait onTo select (a student in a classroom, etc.) to provide an answer.
Example: He sat there, baffled, hoping nobody would call on him.
(also call upon) To request or ask something of (a person); to select for a task.
Example: The king called on his subjects to take up arms and defend the kingdom.
(also call upon) To have recourse to.
Example: Exhausted, he called on his last ounce of strength.
Synonyms:summon up