wait on
verb
Definitions
To provide a service to (someone); to act as a servant to (someone); to serve (someone) as a waiter or waitress in a restaurant.
Example: Is someone waiting on you yet?
Synonyms:attend toTo wait for (a person).
Example: I'm waiting on you before we can leave.
To wait for (a thing, or an event to take place).
Example: I'm waiting on the light to change.
To be in store for (someone).
Synonyms:await