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Difference between Acquirement, Acquisition, Attainment and Accomplishment

Difference between Call in on someone and Call on someone

call in on someonepay a short visit (to a friend, etc.):

  • We would call in on Patrick on the way to your mother’s.

call on someone

1. visit a person for business or official reasons:

  • A doctor called on her and found she had come down with pneumonia.

2. appeal to a person for smth.:

  • Lord Berkeley called on all his friends to help him.