SYN: Compute, reckon, enumerate, estimate, number, sum, calculate.
ANT: Hazard, conjecture, guess, lump, confound.
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KEY: Countenance \v.\
SYN: Help, aid, abet, favor, sanction, patronize, support, encourage.
ANT: Oppose, confront, discourage, discountenance, browbeat.
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KEY: Countenance \n.\
SYN: Aid, abet, encourage, support.
ANT: Discountenance.