Peephole

Noun

 * 1) A small hole, opening, or glass, especially in a door, through which to look.

Thesaurus
Texas tower, air hole, armhole, beacon, belvedere, bleachers, blowhole, bridge, bullet-hole, bunghole, conning tower, cringle, deadeye, eye, eyelet, gallery, gasket, gazebo, grandstand, grommet, guide, keyhole, knothole, lighthouse, lookout, loop, loophole, manhole, mousehole, observation post, observatory, outlook, overlook, peanut gallery, pharos, pigeonhole, pinhole, placket, placket hole, porthole, punch-hole, ringside, ringside seat, sighthole, spiracle, tap, top gallery, tower, vent, venthole, watchtower

Translations

 * German:
 * Hungarian: kémlelőnyílás
 * Macedonian: шпионка (špíonka)


 * Serbian: zurka
 * Volapük: logedahog