Entry 1 sense Webster, 1913 Leman /(lē"man [or] lĕm"an; 277)/ · Le·man · IPA /ˈlɛmən/ 01 n. A sweetheart, of either sex; a gallant, or a mistress; -- usually in a bad sense. 1. A sweetheart, of either sex; a gallant, or a mistress; -- usually in a bad sense.[Archaic]