(1):

(v. t. & i.) To be able; - followed by an infinitive without to; as, I can go, but do not wish to.

(2):

(v. t. & i.) To know; to understand.

(3):

(v. t.) To preserve by putting in sealed cans

(4):

an obs. form of began, imp. & p. p. of Begin, sometimes used in old poetry. [See Gan.]

(5):

(n.) A drinking cup; a vessel for holding liquids.

(6):

(n.) A vessel or case of tinned iron or of sheet metal, of various forms, but usually cylindrical; as, a can of tomatoes; an oil can; a milk can.

(7):

(v. t. & i.) To be able to do; to have power or influence.