wait at table
To serve food and drinks to patrons in a restaurant or similar establishment, as of a waiter or waitress. Until I got my first big TV role, I waited at table at a crummy little diner for 60 hours a week. Waiting at table is a great job for someone fresh out of high school or college, but it's not something most people want to do for the rest of their lives.
wait at table
Also, wait on table. Serve at a meal, as in She got a summer job at a resort waiting at table, or Waiting on table usually does not pay very well. [Mid-1500s] Also see wait on.