A thin sheet of metal, or a fencing weapon
n. ... A fencing sword having a 
usually circular guard and a thin, flexible four-sided blade with a button on the... [DOC] [TLE] foil English definition/translation - seadict.com [PAR] [foil2] [foils, foiled, foiling] n.  noun a light, blunt-edged fencing sword with a ... [
uncountable] metal sheets that are as thin as paper, used for wrapping food [DOC] [TLE] Foil - Wikipedia [PAR] Foil may refer to: Contents.