Hypothesis is a ________________.
Hypothesis is a Justified belief that is not known to be true.
A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories. Even though the words "hypothesis" and "theory" are often used synonymously, a scientific hypothesis is not the same as a scientific theory. A working hypothesis is a provisionally accepted hypothesis proposed for further research, in a process beginning with an educated guess or thought.
On their account, knowledge is undefeated justified true belief — which is to say that a justified true belief counts as knowledge if and only if it is also the case that there is no further truth that, had the subject known it, would have defeated her present justification for the belief.
The theory of justification is a part of epistemology that attempts to understand the justification of propositions and beliefs. ... Loosely speaking, justification is the reason that someone (properly) holds a belief. When a claim is in doubt, justification can be used to support the claim and reduce or remove the doubt.