Définitions
1.NounA person who fits or assembles something."a fitter of clothing, or of machinery"
2.NounAn epileptic.
3.NounA coal broker who conducts the sales between the owner of a coal pit and the shipper.
4.NounA person employed to find suitable music to accompany silent films.
5.Noun↑ 1858, Peter Lund Simmonds, The Dictionary of Trade Products
6.Adjectivecomparative form of fit: more fit"An exercise bike won't make you fitter if you never find time to use it.; My bird's loads fitter than yours."