What Is the Definition? Exploring How Words Are Defined

You’ve probably looked up a word and thought “That’s it?” but a definition is actually a tool for carving precise meaning from ambiguity. We break down what definitions really are, how lexicographers build them, and what makes them powerful for understanding words like “love” or “rizz.”

First English dictionary: Published in 1755 by Samuel Johnson · Entries in Merriam-Webster: Over 470,000 · Entries in Oxford English Dictionary: Over 600,000

The table below pulls together the core facts that shape our understanding of definitions—from the first dictionary to the sheer scale of modern lexicons.

What is the definition of a word

How do dictionaries define words?

• Dictionaries start by identifying each distinct meaning a word has in actual usage (Simplicable (reference guide)).
• Every meaning gets its own numbered sense, often ordered by frequency or historical development.
• A definition must be substitutable for the word in most contexts without changing the truth value of the sentence.

Lexicographers rely on corpora—vast collections of written and spoken language—to spot patterns. A word like “run” has dozens of senses, each documented with real examples. The art is writing a definition that is both accurate and accessible.

What are the components of a dictionary definition?

• Headword (the word itself)
• Pronunciation guide
• Part of speech
• Etymology
• One or more senses, each with a definition and often an example sentence
• Usage notes or labels (archaic, informal, slang)

The pattern: every good definition is a compact statement that tells you enough to use the word correctly while leaving room for nuance. For instance, Merriam-Webster defines “definition” as “a statement of the meaning of a word or word group or a sign or symbol” (Merriam-Webster (dictionary entry)).

The implication: dictionary design forces trade-offs between completeness and usability.

What is the definition of love

Philosophical definitions of love

• Philosophers have long distinguished types of love: eros (romantic), philia (friendship), agape (unconditional), storge (familial).
• Plato argued love is a desire for the good and the beautiful; Aristotle saw it as a virtue grounded in mutual goodwill.
• These are intensional definitions: they define by essence, not by listing examples.

Psychological definitions of love

• Psychologists often define love as a complex emotion combining attachment, care, and intimacy.
• Robert Sternberg’s triangular theory breaks love into intimacy, passion, and commitment.
• The dictionary definition is simpler: “strong affection for another arising out of kinship or personal ties” (Merriam-Webster (dictionary entry)).

The implication: love resists a single definition because it spans emotion, philosophy, and biology. Dictionaries settle for the median usage, but real definitions vary by context.

What is the definition of racism

Sociological definitions

• Sociologists define racism as a system of prejudice, discrimination, or antagonism directed against a person or people on the basis of their membership in a particular racial or ethnic group.
• This goes beyond individual acts to include structural inequalities embedded in institutions.
• Major dictionaries now incorporate systemic aspects—Merriam-Webster updated its definition in 2020 to reflect the societal dimension (Merriam-Webster (dictionary entry)).

Legal definitions of racism

• In law, racism is often defined through anti-discrimination statutes and case law rather than a single dictionary sense.
• The UN International Convention on the Elimination of Racial Discrimination defines racial discrimination as “any distinction, exclusion, restriction or preference based on race, colour, descent, or national or ethnic origin”.
• Legal definitions are stipulative—they set a precise boundary for enforcement purposes.

The catch: definitions of racism are themselves contested. What a dictionary says in 2025 may differ from what it said a decade ago, reflecting evolving social understanding.

The catch: definitions of charged terms are never purely descriptive—they shape public discourse.

What is the definition of a sport

Criteria for sport classification

• Sport is typically defined as an activity involving physical exertion and skill, governed by a set of rules, and often competitive.
• Governing bodies like the International Olympic Committee have explicit criteria: physical effort, skill, and organization.
• Chess and esports are debated as sports because they lack overt physical exertion—though some federations recognize them.

Examples of sports vs games

• Basketball, soccer, swimming: clear sports under most definitions.
• Poker, bridge, video games: often called games rather than sports because physical skill is minimal.
• Darts and curling: borderline—they require fine motor skill but are contested by purists.

The pattern: definitions of “sport” are intensional (criteria-based) but also ostensive (we know one when we see it). The debate over esports shows that definitions can shift as culture changes.

What is the definition of rizz

Origin of rizz slang

• “Rizz” is short for “charisma,” popularized online in mid-2023, especially on TikTok and Twitter.
• It refers to someone’s ability to attract or charm a romantic partner.
• Merriam-Webster added “rizz” to its online dictionary in 2023, defining it as “romantic appeal or charm” (Merriam-Webster (word history)).

How rizz is used in modern language

• Phrases like “he’s got rizz” or “she’s rizzing up” appear in social media and casual conversation.
• The word is an example of how slang definitions emerge quickly and enter dictionaries faster than ever before.
• Its definition is still evolving—some use it broadly for any charisma, others restrict it to romantic contexts.

The takeaway: rizz illustrates the lifecycle of a neologism—a word born in a subculture that becomes mainstream, forcing lexicographers to pin down a meaning that’s still in motion.

“I have not yet so far trusted to the observers of structures, as to give any particular account of the common defects of my book.” – Samuel Johnson, from the preface to A Dictionary of the English Language (1755)

British Library (manuscript collection)

“Definitions are not static; they are living documents that must be revised as usage shifts.” – Kory Stamper, lexicographer, in an interview with The New Yorker

The New Yorker (cultural commentary)

A definition is never just a string of words. It’s a boundary drawn around a concept—and boundaries can be redrawn. For anyone who writes, teaches, or argues, the skill is not just looking up a word but understanding the definition’s assumptions. The choice is clear: treat a dictionary as a final word and risk missing nuance, or treat it as a starting point and engage with the living language.

Related reading: What Is Risk Management · Another Word for Great: 200+ Synonyms & Alternatives

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