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3. look in on

look in on

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look in on somebody

to visit someone briefly The doctor said he'd look in on you tomorrow.

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look in on

Pay a brief visit, as in I'm just going to look in on Gail and the new baby; I won't stay long. [c. 1600] Also see look someone in the face.

See also: look, on

look in on

To visit: I look in on my grandparents each weekend.

See also: look, on