n. 25B6; adjective
of passing interest : FLEETING, transient, transitory, ephemeral, brief, short-lived, temporary, momentary; poetic/literary evanescent.
a passing glance : HASTY, rapid, hurried, brief, quick; cursory, superficial, casual, perfunctory.
25B6; noun
the passing of time : PASSAGE, course, progress, advance.
Jack's passing : DEATH, demise, passing away/on, end, loss, quietus; formal decease.
the passing of the new bill : ENACTMENT, ratification, approval, adoption, authorization, legalization, endorsement.
25A0; in passing INCIDENTALLY, by the by/way, en passant.