Verb wait on has 1 sense
  1. serve, attend to, wait on, attend, assist - 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"
    --1 is one way to help, assist, aid
    Sample sentence:
    Sam cannot wait on Sue
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