understand

1 to form an opinion or reach a conclusion through reasoning and information as I understand it, this is the best plan that we have Synonyms conclude, decide, deduce, derive, extrapolate, gather, judge, make out, reason, inferRelated Words assume, suppose; conjecture, guess, speculate, surmise; construe, interpret, read; contemplate, philosophize, rationalize, think; ascertain, dope (out), find out

2 to have a practical understanding of I think I understand how an engine works now Synonyms comprehend, grasp, knowRelated Words appreciate, apprehend, cognize, fathom, follow, ken [chiefly Scottish], perceive, savvy; have, possess; catch on (to), pick upNear Antonyms misapprehend, misconceive, misinterpret, misknow, misperceive, misunderstand

3 to have a clear idea of after a few weeks in Russia I began to understand the language a little bit Synonyms appreciate, apprehend, assimilate, behold, catch, catch on (to), cognize, compass, conceive, cotton (to or on to), decipher, decode, dig, discern, get, grasp, grok, intuit, know, make, make out, perceive, recognize, register, savvy, see, seize, sense, tumble (to), twig, comprehendRelated Words absorb, digest, take in; realize; fathom, penetrate, pierceNear Antonyms misapprehend, misconceive, misconstrue, misinterpret, misperceive, misread, mistake, misunderstandAntonyms miss