Mensurate is a rare word that means to measure or calculate. There are many synonyms for this word that can be used in its place, such as measure, quantify, gauge, evaluate, assess, and calculate. Each of these words has a slightly different meaning but can be used interchangeably with mensurate depending on the context. Other similar words include estimate, tally, determine, and compute, all of which refer to the act of measuring something or making a calculation. These synonyms for mensurate can be used in a variety of fields, such as science, math, construction, and engineering, making them versatile and useful in many different contexts.