A term generally used to refer to statements of fact, opinion, belief, and prejudice.
Assertion
A verifiable statement that can be proven objectively by a verifiable research.
Fact
A personal judgement based on facts; an honest attempt to draw a conclusion from factual evidence, and not mere statement of one's belief.
Opinion
A conclusion based on cultural or personal faith, morality or values, thud not based on evidence.
Belief
A prejudice which is half-baked opinion based on insufficient or unexamined evidence but was presented as if it were a fact; like an opinion but not subjective as opinion; claims universality and is presented as an absolute truth.