Entry 2 senses · 2 variants Webster, 1913 Foiling · Foil·ing · IPA /ˈfɔɪlɪŋ/ n. n. 01 n. A foil. 1. A foil.(Arch.) 02 n. The track of game (as deer) in the grass. 1. The track of game (as deer) in the grass.(Hunting)