A small cap worn over the fingertip for protection
[PAR]  (tip, nozzle, CAP, point, arrowhead, thimble) ... 1. a small cap, 
usually of metal, worn over the fingertip to protect it when pushing a needle 
through... [DOC] [TLE] Quia - Fahrenheit 451 Vocab Part I (flash cards) [PAR] thimble, a small cap, usually of metal, worn over the fingertip to protect it when 
pushing a needle through cloth.