Tenet

[Sarah]

Any opinion, principle, dogma, belief, or doctrine, which aperson holds or maintains as true; as, the tenets of Plato or ofCicero.That al animals of the land are in their kind in the sea, . . . is atenet very questionable. Sir T. Browne.The religious tenets of his family he had early renounced withcontempt. Macaulay.

[Sarah]

A five-letter word that basically insults your entire world-view, goes on to insult that of your parents, and finally settles on suggesting that you have troubles in life because you don't try hard enough.

( from Dinosaur Comics: http://www.qwantz.com/archive/000640.html )

[Greta]

a religious doctrine that is proclaimed as true without proof

[JustiniaNex]

Position; principle; opinion.

[Frankykap]

A tenet is a principle, belief, or doctrine generally held to be true, especially one formally stated by a religious, philosophical, or political organization. It serves as part of the foundation of a system of beliefs or practices.

[GrompelFem]

ten′et, n. any opinion, principle, or doctrine which a person holds or maintains as true. [L. tenet, he holds—tenēre, to hold.]