Synonyms and related words :
Vernunft, amount, analogousness, arithmetical proportion, balance, brain, brains, caliber, commensurability, comparability, comparableness, comparativeness, compass, conception, continued fraction, correlation, correspondence, cut, degree, discourse of reason, discursive reason, equivalence, esprit, extent, fraction, geometric ratio, grade, gray matter, harmonic proportion, head, headpiece, height, improper fraction, intellect, intellection, intellectual faculty, intelligence, interval, leap, level, mark, measure, mens, mental capacity, mentality, mind, notch, nous, nuance, pas, peg, percent, percentage, period, pitch, plane, plateau, point, power of reason, proportion, proportionability, psyche, quota, quotum, range, rate, rationality, reach, reason, reasoning, reasoning faculty, relationship, remove, round, rule of three, rung, scale, scope, shade, shadow, similarity, smarts, space, stair, standard, step, stint, tread, understanding