See reckon in Webster's New World Roget's A-Z Thesaurus II
verb
To note (items) one by one so as to get a total:
count, enumerate, number, numerate, tally, tell. See countTo ascertain by mathematics:
calculate, cast, cipher, compute, figure. See reasonTo calculate approximately:
approximate, estimate, place, put, set1. See preciseTo look upon in a particular way:
account, consider, deem, esteem, regard, see, view. See perspective- (Informal)
To take for granted without proof:
assume, posit, postulate, premise, presume, presuppose, suppose. See belief
phrasal verb reckon on or
uponTo place trust or confidence in:
bank on (or upon), believe in, count on (or upon), depend on (or upon), rely on (or upon), trust (in). See trust
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