barkeep UK /ˈbɑː(ɹ)ˌkiːp/US /ˈbɑɹˌkiːp/noun 1verb 1forms 3 noun1 •(informal) A bartender.I sez to the barkeep' o' the hotel, "Show me the biggest doctor here." — 1873 verb1 •To bartend; to keep a bar; to act as a barkeep.I barkeeped in Pontiac, Michigan and, later in Detroit and Ypsilanti. — 2001 formsbarkeeped · barkeeping · barkeeps