verb to believe especially on uncertain or tentative grounds.
— synonyms: theorize, theorise, conjecture, hypothesize, hypothesise, hypothecate, suppose
verb 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.
verb reflect deeply on a subject.
— synonyms: chew_over, think_over, meditate, ponder, excogitate, contemplate, muse, reflect