A facial expression.
Physical appearance, visual impression.
The action of looking; an attempt to see.
As a transitive verb, often in the imperative; chiefly takes relative clause as direct object.
To make sure of, to see to.
To look at a pitch as a batter without swinging at it.
To give an appearance of being.
To express or manifest by a look.
To face or present a view.
To expect or anticipate.
As an intransitive verb, often with "at".
To search for, to try to find.
To appear, to seem.
Pay attention.
The face.
A stupid or contemptible person.
A gullible or easily-cheated person.
A criminal.
A large cup for beverages, usually having a handle and used without a saucer.
Motherfucker (usually in similes, e.g. "like a mug" or "as a mug")
To assault for the purpose of robbery.
To photograph for identification; to take a mug shot.
To exaggerate a facial expression for communicative emphasis; to make a face, to pose, as for photographs or in a performance, in an exaggerated or affected manner.
To learn or review a subject as much as possible in a short time; cram.
Uninteresting or unpleasant.