Definition · Plain-language
Metaphor
A metaphor is a figure of speech that describes one thing by saying it is another, drawing an implicit comparison without using "like" or "as".
The step most authors miss
Doing CRediT right? Don’t stop at the statement.
A CRediT statement credits you inside one paper. The recognition CRediT was built for happens when those roles are tied to you, persistently. Sign in with your ORCID — free — and claim your CRediT contributions on casrai.org, the home of the standard. They become a verified, portable part of your identity, not a line that disappears into one PDF.
Free: claim your contributions, then export a journal-ready CRediT statement, schema.org structured data, JATS XML, CSV or BibTeX — and preview your public profile. A membership publishes that profile publicly and verifies the journals you serve.
How a metaphor works
A metaphor maps the qualities of one thing (the source) onto another (the target) by asserting an identity between them. When Shakespeare writes "all the world’s a stage", he is not claiming the world is literally a theatre; he is inviting readers to view human life through the qualities of performance — roles, acts and exits. Because the comparison is stated as fact rather than likeness, a metaphor feels more direct and forceful than a simile. The reader supplies the unstated logic, which is part of why metaphors can compress a great deal of meaning into very few words.
Types of metaphor
Several forms recur in literature. An extended metaphor sustains a single comparison across many lines or a whole passage, developing it in detail. An implied metaphor names neither term directly but signals the comparison through associated language, as in "she barked orders at the staff", which likens a person to a dog without saying so. A dead metaphor, such as "the leg of a table", has become so familiar that its figurative force has faded. A mixed metaphor awkwardly combines two incompatible images and is usually treated as a fault.
Why writers use metaphor
Metaphor is one of the most powerful tools in figurative language because it makes the abstract concrete and the unfamiliar familiar. By describing grief as "a weight" or hope as "a flame", a writer gives an intangible feeling a physical presence the reader can sense. Metaphors also carry connotation and tone: calling an argument "a battlefield" frames it very differently from calling it "a dance". Beyond decoration, cognitive theorists argue that metaphor structures everyday thought, shaping how we reason about time, emotion and ideas.
Key facts
At a glance
- Definition: a comparison stating one thing IS another, without "like" or "as"
- Contrast: a simile uses "like" or "as"; a metaphor does not
- Example: "the classroom was a zoo"
- Extended metaphor: a single comparison sustained across a passage
- Function: makes abstract ideas vivid, concrete and memorable
- Category: a core form of figurative language
Common misconceptions
What people often get wrong
Often heard: A metaphor and a simile are the same thing.
Actually: They are closely related but distinct. A simile states a comparison using "like" or "as" ("brave as a lion"), keeping the two things separate. A metaphor drops the connective and asserts identity ("he is a lion"), which makes the comparison more direct and emphatic.
Often heard: A metaphor is a literal statement of fact.
Actually: A metaphor is figurative, not literal. Saying "her voice is music" does not mean the voice is literally song; it transfers the pleasing qualities of music onto the voice. Reading a metaphor literally misses its meaning.
Often heard: Metaphors only appear in poetry.
Actually: Metaphors are everywhere in ordinary language, journalism, advertising and political speech ("the economy is heating up"). Many are so common we no longer notice them, which shows how deeply metaphor is woven into everyday thought.
