Entry 2 senses · 2 variants Webster, 1913 Fusillade /fyo͞os'-ĭl-ādˌ/ · Fu·sil·lade · IPA /ˈfjuːsɪˌleɪd/ n. v. t. 01 n. A simultaneous discharge of firearms. 1. A simultaneous discharge of firearms.(Mil.) 02 v. t. To shoot down of shoot at by a simultaneous discharge of firearms. imp. & p. p. Fusillader; p. pr. & vb. n. Fusillading 1. To shoot down of shoot at by a simultaneous discharge of firearms.