Source : WordNet®

tell apart
     v 1: detect with the senses; "The fleeing convicts were picked
          out of the darkness by the watchful prison guards"; "I
          can't make out the faces in this photograph" [syn: {recognize},
           {recognise}, {distinguish}, {discern}, {pick out}, {make
          out}]
     2: mark as different; "We distinguish several kinds of maple"
        [syn: {distinguish}, {separate}, {differentiate}, {secern},
         {secernate}, {severalize}, {severalise}, {tell}]