GILL Meaning of GILL in English n. (also Gill, jill, Jill) 1 derog. a young woman. 2 colloq. or dial. a female ferret. [ ME, abbr. of Gillian f. OF Juliane f. L Juliana (Julius) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012