to find out or estimate the extent, dimensions, etc. of, esp. by the use of a standard; to measure.

to determine or express the quantity of; indicate the extent of; to measure; to quantify.

to find out or estimate the extent, dimensions, quantity, number, etc. of, esp. by the use of a standard; to measure.

to estimate or judge the quality, worth of; to appraise.

to know; to understand.

to establish as true; demonstrate to be a fact; to prove.