on account conjunction 1prepositional phrase 1 conjunction1 •(informal) On account of the fact that; because.Take your three days off, Mr. Barlow, only don't expect to be paid for them on account you're thinking up some fancy ideas. — 1948 prepositional phrase1 •As something to be reckoned up as part of final payments; on credit.And, could you—you don't mind a bit on account to go on with, do you? I'm not exactly what you'd call up and in just at the moment." — 1934
