Entry 3 senses · 2 variants Webster, 1913 Fitter /fĭt'-ẽr/ · Fit·ter · IPA /ˈfɪtɚ/ n. n. 01 n. One who fits or makes to fit; 1. One who fits or makes to fit; 2. A coal broker who conducts the sales between the owner of a coal pit and the shipper.[Eng.] 02 n. A little piece; a flitter; a flinder. 1. A little piece; a flitter; a flinder.[Obs.] “Where's the Frenchman? Alas, he's all fitters.” — Beau. & Fl.