(1):

(n.) Something demanded or asserted; especially, a position or supposition assumed without proof, or one which is considered as self-evident; a truth to which assent may be demanded or challenged, without argument or evidence.

(2):

(n.) The enunciation of a self-evident problem, in distinction from an axiom, which is the enunciation of a self-evident theorem.

(3):

(a.) Postulated.

(4):

(v. t.) To beg, or assume without proof; as, to postulate conclusions.

(5):

(v. t.) To invite earnestly; to solicit.

(6):

(v. t.) To take without express consent; to assume.