'Postulate -- (1) take as a given; (2) assume as a postulate or axiom; (3) maintain or assert; (4) require as useful, just, or proper. Speculate -- (1) invest at a risk; (2) o believe especially on uncertain or tentative grounds; (3) talk over conjecturally, or review in an idle or casual way and with an element of doubt or without sufficient reason to reach a conclusion; (4) reflect deeply on a subject. ' 'Postulate' is to make a strong statement of belief, usually formally presented.
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