mill., mill,n.7|mɪl| Also mil. Colloq.abbrev. of million. 1955R. J. Schwartz Compl.Dict.Abbrev. 112/3 Mill., million.1975New Yorker 20 Jan. 29/1 Thanks a mil for your letter.1975D. Lowden Bellman & True xi. 55 ‘How much will he take then?’ ‘Anything we can give him, up to two mill.’