gauge

1 to decide the size, amount, number, or distance of (something) without actual measurement <glance over the pattern and try to gauge how much fabric you'll need> Synonyms calculate, call, conjecture, figure, estimate (also gage), guess, judge, make, place, put, reckon, supposeRelated Words conclude, deduce, extrapolate, gather, infer, reason, understandNear Antonyms calibrate, measure, scale; compute, work out

2 to find out the size, extent, or amount of <very difficult to gauge how upset he really is by his controlled reaction> Synonyms measure (also gage), scale, spanRelated Words weigh; calibrate, caliper; quantify, quantitate; lay off, mark (off); calculate, cipher, compute, figure, reckon, work out; appraise, assess, conjecture, estimate, evaluate, guess, guesstimate, judge, suppose, valuate, value; add up, sum, tally, total; ascertain, determine, discover, dope (out), figure out, find out