'wait on' definitions:

Definition of 'wait on'

(from WordNet)
verb
Work for or be a servant to; "May I serve you?"; "She attends the old lady in the wheelchair"; "Can you wait on our table, please?"; "Is a salesperson assisting you?"; "The minister served the King for many years" [syn: serve, attend to, wait on, attend, assist]

Synonyms of 'wait on'

From: Moby Thesaurus