Synonyms for finder

noun

1. One who discovers a thing

   discoverer, spotter, acquirer, appropriator, claimant, lucky searcher, search party.

   Antonyms loser*, owner, stray.

2. A locating device

   sight, telescopic sight, bombsight, gunsight, electronic finder, homing device, synchronic radar detector, radar reflector, viewfinder, rangefinder, periscope, glass, radar, sonar.