Used as a polite emphasis to a request or question. Would you by any chance happen to know where the subway is from here?Let me know if you should come across a copy of that book by any chance.See also: any, by, chance
by ˈany chance
used especially in questions, to ask whether something is true, possible, etc: Are you in love with him, by any chance?See also: any, by, chanceLegalSeeChanceAcronymsSeeBAC