(1):

(prep.) Hence, inside the limits, reach, or influence of; not going outside of; not beyond, overstepping, exceeding, or the like.

(2):

(adv.) In the inner part; inwardly; internally.

(3):

(prep.) In the inner or interior part of; inside of; not without; as, within doors.

(4):

(adv.) In the house; in doors; as, the master is within.

(5):

(prep.) In the limits or compass of; not further in length than; as, within five miles; not longer in time than; as, within an hour; not exceeding in quantity; as, expenses kept within one's income.