understand

[1]	grasp , comprehend , see , perceive , discern , make out , get the drift/the hang of , appreciate , interpret , take cognizance of , recognize , be aware/conscious of , be conversant with , know , realize , conceive of , be aware (of) , apprehend , penetrate , (Colloq) get (it) , dig , catch on (to) , tumble to , cotton on (to) , (Brit) twig
[2]	accept , realize , realise , agree , arrange , see , covenant , take
[3]	interpret , read , interpret , take , read , translate , gather from , construe , surmise from , assume from , infer from , view , see
[4]	hear (of) , infer , gather , get wind (of) , take it , be told/informed/advised , have found out/learnt , (Colloq) hear tell
[5]	sympathize/empathize (with) , sympathize , sympathise , be in sympathy (with) , show compassion (for) , empathize , empathise , commiserate (with) , accept , tolerate , allow , forgive