Definition
A gambler is a person who engages in games of chance or skill with the expectation and purpose of winning money or other property. In legal contexts, the term carries regulatory and criminal significance beyond mere participation in a game: it describes someone who pursues gambling as a practice or occupation, not merely an incidental pastime.
The legal definition focuses on two elements: (1) the activity — playing games of chance or skill — and (2) the intent — the expectation and purpose of winning something of value. Both must be present. A person who plays a game without staking anything of value, or who stakes property without expectation of return, falls outside the classic legal definition.
Common Language
Modern common usage (Wiktionary): One who plays at a game of chance; one who gambles. Also, more broadly, one who takes significant risks.
Historical common usage (Webster's 1913): One who gambles.
The legal definition narrows the common meaning in one important direction: it emphasizes habitual practice and purposeful intent to win property, not mere risk-taking. The Wiktionary secondary sense — taking significant risks in business or life — has no legal weight and should not be imported into legal analysis. A speculative investor or a reckless entrepreneur is not a "gambler" in the legal sense regardless of the risk assumed.
Common Confusion
Gambler is sometimes conflated with the broader terms gamester or gaming operator, which historically described persons who ran gambling establishments or profited from others' play rather than from their own wagering. The distinction matters in licensing, tax, and criminal contexts: a gambler plays; an operator or keeper conducts. Statutes regulating gambling frequently distinguish between participants and operators, imposing different penalties on each. Researchers should not assume that a statute addressing "gamblers" reaches operators, or vice versa.
Why It Matters in Research
The legal significance of the term gambler has shifted dramatically across time as gambling law moved from broad prohibition to regulated permission. In the nineteenth and early twentieth centuries, being identified as a "gambler" in a legal document — a pleading, a warrant, a municipal ordinance — carried near-automatic negative legal consequence: gamblers were often subject to vagrancy laws, disqualified from recovering gambling debts, and treated as a class of persons whose testimony or contracts were presumptively suspect.
Researchers working in historical sources must recognize that statutes and cases from this period use "gambler" as a status category, not merely a behavioral description. A person could be arrested, fined, or driven from a jurisdiction on the basis of being known as a professional gambler, regardless of whether any specific gambling act was proven.
In modern sources, the term appears less frequently as a standalone legal category and more often within the framework of gaming regulation statutes, which typically distinguish between licensed and unlicensed participants, problem gamblers as a protected class for regulatory purposes, and professional gamblers for tax treatment. The IRS, for example, treats professional gamblers as self-employed individuals subject to self-employment tax — a classification that turns on facts and circumstances, not merely the frequency of play.
Corpus researchers should watch for false friends: a historical case discussing a "gambler" may be addressing vagrancy or moral regulation, while a modern case using the same word may be addressing tax classification or exclusion from a licensed casino. The same noun, very different legal universe.
Historical Dictionary Support
Black's Law Dictionary defines a gambler as one who follows or practices games of chance or skill with the expectation and purpose of winning money or other property, citing 113 Mass. 193. The definition is compact but structurally sound: it captures both the habitual character (follows or practices) and the purposive character (expectation and purpose of winning) that distinguish the legal gambler from the casual player.
Webster's 1913 adds nothing substantive — "one who gambles" is circular. The historical dictionaries collectively reflect an era when the term's moral freight was so well understood as to require little elaboration. What the historical sources miss is any acknowledgment of the regulatory complexity that would follow: the rise of licensed gaming industries, tribal gaming compacts, online gambling jurisdictions, and the treatment of gambling income and losses under tax law. None of that is anticipated in the nineteenth-century legal definition, and researchers should not read modern nuance back into historical sources.
Jurisdictional Note
Gambling law is almost entirely state-governed in the United States, with significant federal overlay through statutes addressing interstate wagering and tribal gaming. What constitutes a gambler, what activities are prohibited, and what penalties attach vary substantially by state. Researchers should not assume that a definition or rule from one jurisdiction's case law or statute applies in another.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia — Gambling; Gaming Regulation; Vagrancy