Source : WordNet®

pinpoint
     adj : meticulously precise; "pinpoint accuracy" [syn: {pinpoint(a)}]
     n 1: a very brief moment; "they were strangers sharing a pinpoint
          of time together"
     2: a very small spot; "the plane was just a speck in the sky"
        [syn: {speck}]
     3: the sharp point of a pin
     v : locate exactly; "can you pinpoint the position of the
         enemy?"; "The chemists could not nail the identity of the
         chromosome" [syn: {nail}]