Synonyms for Determine:

n.

add up. make up your mind, manage, invent, arrive at, commit yourself, come down, devise, command. cure, law, decree, adjudge, umpire, keep down. demarcate, limited. determine (noun)
influence, decide, set, find, fix, specify, shape, ascertain, make up one's mind, limit, find out, settle, square off, square up, mold.

v.

ascertain (verb)
assure, double check, find out, audit, ascertain.
calculate (verb)
count, quantize, enumerate, study, triangulate, rate, judge, score, tally, calculate, value, schedule, gauge, figure, surmise, account, guess, rank, evaluate, divide, program, plan, quantify, sum, rationalize, systematize, scheme, conclude, presume, plot, consider, infer, reckon, compute, multiply, deduce, estimate, weigh, total, suppose, assess, add, measure, think, approximate, appraise.
choose (verb)
espouse, choose, fancy, adopt, prefer, wish, pick, favor, like, select, elect.
choose, decide (verb)
elect, fix.
dictate, govern, regulate (verb)
devise, limit, plot, invent, measure, shape, manage, command, influence, decide.
discover (verb)
disinter, discover, educe, identify, fathom, unravel, reveal, expose, detect, unearth, recognize, solve, dig up, disclose, Unriddle, breakthrough, elicit, realize, unmask.
discover, find out (verb)
verify, establish, detect, ascertain, unearth, certify, demonstrate, check.
evince (verb)
connote, observe, prove, document, establish, state, attest, demonstrate, manifest, testify, illustrate, witness, certify, authenticate, indicate, depose, confirm, vouch, substantiate, validate, exemplify, evince, declare, exhibit, betoken, support, avouch, corroborate, adduce.
experiment (verb)
check, assay, experiment, analyze, test, verify, research, investigate, probe, try, benchmark.
judge (verb)
decide, pronounce, rule, mediate, resolve, sentence, referee, adjudicate, find, arbitrate.
prove (verb)
confirm, demonstrate, prove, certify, ascertain, verify, establish.

Other synonyms:

adjudge, arrive at, add up. come down, demarcate. keep down. cure. ascertain
double check.
calculate
enumerate, multiply.
choose
make up one's mind, wish.
discover
dig up.
gauge
gauge.
judge
adjudge.
make sure
ascertain.
measure
quantify.

Usage examples for determine

  1. Her father taught her until she was old enough to determine whether she would really have a fine voice. – Famous Singers of To-day and Yesterday by Henry C. Lahee
  2. Only the wisdom of eternity can determine which, if either, I served or injured. – Half a Century by Jane Grey Cannon Swisshelm
  3. People came to America because they wanted to determine their own future rather than to live in a country where others determined their future for them. – Complete State of the Union Addresses from 1790 to the Present by Various