call on
US /kɔːl ɑːn/
UK /kɔːl ɑːn/

1.
pedir, instar
to ask someone in a formal way to do something
:
•
The teacher decided to call on a student to answer the question.
El profesor decidió pedirle a un estudiante que respondiera la pregunta.
•
The president will call on the nation to unite during this crisis.
El presidente instará a la nación a unirse durante esta crisis.
2.
visitar, hacer una visita a
to pay a brief visit to someone
:
•
I decided to call on my grandmother after work.
Decidí visitar a mi abuela después del trabajo.
•
We should call on our neighbors to see if they need anything.
Deberíamos visitar a nuestros vecinos para ver si necesitan algo.