Definition
The act of making a wager; a form of gambling in which two or more parties agree that money or something of value will pass to one of them depending on the outcome of an uncertain future event. Each party contributes to the stake, and the winner is determined by the occurrence or non-occurrence of the specified event.
Betting is a subset of the broader category of gambling and is closely related to the law of wagering contracts. At its core, a bet requires: (1) an agreement between parties, (2) a stake of money or valuable consideration contributed by each, and (3) an uncertain future event that determines who takes the stake.
Common Language
Modern common usage (Wiktionary): Present participle and gerund of "bet" — the act of staking money or something of value on an uncertain outcome.
Historical common usage (Webster's 1913): To stake or pledge upon the event of a contest; to wager.
The ordinary and legal meanings here are closely aligned, but the legal definition carries additional weight: it frames betting as a species of gambling, which in legal contexts triggers criminal liability, statutory regulation, and questions about contract enforceability. In common speech, "betting" is a neutral description of an activity; in law, it is a term of art that determines whether a contract is void, voidable, or criminal.
Common Confusion
Betting, wagering, and gambling are often used interchangeably in ordinary speech, but legal sources treat them with varying precision. Gambling is the broadest category, encompassing games of chance, lotteries, and wagering generally. Wagering refers to the contractual agreement underlying a bet — the wager is the contract; betting is the act of making it. A wager can exist without the social or commercial context associated with "gambling" in its modern regulatory sense. Researchers should not assume these terms are synonymous across jurisdictions or historical periods; statutes frequently define each separately, and a document prohibiting "gambling" may or may not reach a private bilateral bet on a sporting event.
Why It Matters in Research
Betting sits at the intersection of contract law, criminal law, and regulatory law, and the legal treatment of the term has shifted dramatically across time and jurisdiction. Several research traps are worth noting.
First, enforceability: historically, wagering contracts occupied an ambiguous position in common law. English courts enforced many wagers as ordinary contracts until the Gaming Act 1845 rendered them void. American jurisdictions diverged sharply — some voided wagering contracts by statute, others by judicial doctrine, and a minority enforced them. A document that speaks to betting "contracts" may be analyzing validity under very different frameworks depending on the date and jurisdiction.
Second, criminal versus civil framing: Bouvier notes that states "generally make this a crime" with supporting statutes. That was true of 19th-century American law, but the modern landscape is far more fragmented. The legalization of sports betting following Murphy v. National Collegiate Athletic Association (2018) opened a new regulatory era. Pre-2018 sources treating betting as presumptively criminal are now partially obsolete for U.S. research; post-2018 sources must be checked against specific state statutory schemes.
Third, definitional circularity in statutes: many gambling and betting statutes define "betting" by reference to "wagering," and vice versa. When reading historical statutes or cases, trace both terms through the same document to avoid assuming a definition that isn't stated.
Fourth, corpus connections: betting law intersects with insurance law (the insurable interest doctrine developed partly to distinguish legitimate insurance from wagering on lives), securities law (bucket shops were historically prosecuted as betting operations), and gaming regulation. Researchers following a betting issue may need to move across these adjacent bodies of law.
Historical Dictionary Support
Bouvier's definition is concise but accurate to the 19th-century common law position: betting is a species of gambling, and the essential structure is a multi-party agreement staking value on an uncertain future event. The cited New York authority (81 N.Y. 539) grounds the definition in appellate case law rather than pure abstraction, which is characteristic of Bouvier's method.
What Bouvier's entry does not capture is the full doctrinal complexity around enforceability. By the time of the editions in wide circulation, the American majority rule was treating wagering contracts as void or voidable — not merely criminal — but Bouvier frames the legal consequence primarily in criminal terms ("the states generally make this a crime"). This framing is useful but incomplete for a researcher examining civil suits to recover betting stakes or debts arising from wagers.
Bouvier also does not distinguish between betting on events (sporting contests, elections) and betting in games of chance (cards, dice), a distinction that became increasingly important as states developed separate statutory frameworks for casino gaming, horse racing, and sports wagering.
Jurisdictional Note
Jurisdictional variation in betting law is extreme and material to any research question. Following Murphy v. NCAA (2018), individual U.S. states have authority to legalize sports betting, and roughly half have done so under divergent regulatory frameworks. Internationally, the distinction between legal and illegal betting turns entirely on local licensing schemes. Historical research using pre-20th-century sources should account for the near-universal prohibition that characterized American betting law during that period.