to perceive by the sight or some other sense or by the intellect; see, recognize, or apprehend

They discerned a sail on the horizon.

to distinguish mentally; recognize as distinct or different; discriminate

He is incapable of discerning right from wrong.

to distinguish or discriminate.

verb

disregard , neglect , overlook

verb

anticipate , apprehend , ascertain , behold , descry , detect , determine , difference , differentiate , discover , discrepate , discriminate , distinguish , divine , espy , extricate , figure out , find out , focus , foresee , get a load of , get the picture , get wise to , judge , know , make distinction , make out , note , notice , observe , perceive , pick out , read , remark , rubberneck * , secern , see the light , see through , separate , severalize , spot , take in , view , glimpse , spy , mark , mind , see , tell , distinguish. see , uncover , understand