Definition of gambling: Betting (wagering) that must result either in a gain or a loss. Gambling is neither risk taking in the sense of speculation (assumption of. gambling meaning, definition, what is gambling: the activity of betting money, for example in a game or on a horse race. Learn more. The limits of what is considered “ gambling ” behaviour have shaped the definitions of “problem” gambling that are used, and how problem gambling is measured. Free content Linking Lookup box. More examples It seems that politicianslike ordinary citizensare conflicted about gambling. Word Games Words for Summer -- A Quiz Test your knowledge of words related to the season of longer days and vacations. Free Tools For surfers: Category Commons Wiktionary WikiProject. Thesaurus Antonyms Related Words Synonyms Legend: Casino game List of bets.