Annoying Atheist Arguments

[pocaracas]

Do you even bother to learn the meanings of words before you use them?

I don't know which dictionary you've been using, but I go by this one:
assumption:

as·sump·tion
[uh-suhmp-shuhn]
noun
1.
something taken for granted; a supposition: a correct assumption. Synonyms: presupposition; hypothesis, conjecture, guess, postulate, theory.
2.
the act of taking for granted or supposing. Synonyms: presumption; presupposition.
3.
the act of taking to or upon oneself. Synonyms: acceptance, shouldering.
4.
the act of taking possession of something: the assumption of power. Synonyms: seizure, appropriation, usurpation, arrogation.
5.
arrogance; presumption. Synonyms: presumptuousness; effrontery, forwardness, gall.

Belief:

be·lief
[bih-leef]
noun
1.
something believed; an opinion or conviction: a belief that the earth is flat.
2.
confidence in the truth or existence of something not immediately susceptible to rigorous proof: a statement unworthy of belief.
3.
confidence; faith; trust: a child's belief in his parents.
4.
a religious tenet or tenets; religious creed or faith: the Christian belief.

I fail to see that they are the same...