The different expressions to say: 'choice'

option, optional, preference, probable, inevitable, instead, otherwise, else, avoidable, alternative, candidate.

The different expressions to say: 'signify'

specify, suggest, symbolize, symptom, point, pointer, pointless, mark, marker,  denote, depict, describe, designate, clue, code, codify,  connote,  decode, sign, signal, signalize, indicate, represent.

The different expressions to say: 'determinant'

strategy, rule, standard, proposition, scale, predisposition, formula,  statistic, plan,  modus operandi, method, mode, principle.

The different expressions to say: 'decide'

determine, value, judge, know, resolve, vague, measure,  investigate, infer, interpret, inquire, inquiry, intractable, intelligible,  intelligence, undoubted, valueless, select, selection, senseless,  undecided, uncertain,  prognosis, ignorant, ignore, ignorance, incomprehensible,  indecipherable, indecision, indecisive, confusing, count, enumerate, quantify, quantification, enumeration, elucidate, elusive, estimate, evaluate, figure, find, identify, diagnose, diagnosis,  compute, comprehend, decipher,  ambiguous, ascertain,  assert.