Metaphor, Metonymy, Simile, Analogy and Symbol

Metaphor, metonymy, simile, analogy and symbol name different ways in which expressions or objects can participate in meaning. They are useful distinctions, but their boundaries depend partly on the theoretical framework and the example under discussion. A single passage can employ more than one of them.

This article compares the terms through constructed examples. It complements Metaphor Categories, which describes kinds of metaphor, and Semiotics, which introduces the broader study of signs. Its purpose is to help readers state what relationship they are proposing rather than attach a label on the strength of one word.

A comparative overview

Term	Central question	Invented example
Metaphor	Is one thing being understood or described through another kind of thing?	“Her explanation was a bridge.”
Metonymy	Does an associated entity provide access to the intended referent?	“The office has approved the plan.”
Simile	Is an explicit comparison being made?	“Her explanation was like a bridge between the teams.”
Analogy	Which relationships in one situation are compared with relationships in another?	Comparing communication between teams with traffic between two shores
Symbol	What does an object, form or action stand for within this context or convention?	A bridge used in a local emblem to represent civic connection

Kroeger's introduction to semantics treats metaphor and metonymy among the processes that extend meaning. Aristotle's Poetics uses a historically different classification of metaphor, including transfers by proportion. Modern terms should therefore not be projected unchanged onto every older discussion.

Metaphor: more than a replacement label

In the bridge example, the explanation is not literally a structure spanning water. The comparison makes relationships available: separation, access, passage and connection. It may also invite questions about whether both sides can cross or whether the connection can fail. The surrounding passage determines which possibilities are relevant.

Different theories explain this process differently. Interaction accounts emphasise how the description reorganises understanding; conceptual accounts propose mappings between domains; pragmatic accounts emphasise contextual inference. A short paraphrase such as “the explanation helped” may capture one consequence while losing the particular organisation of the image.

Metonymy: association and reference

In “The office approved the plan”, a location or institution can stand for the people authorised to act. No claim is made that those people resemble a room. Other possibilities include an author for works, a producer for a product, or a part for a larger entity. Synecdoche is often used for part–whole transfers, although classifications differ.

Context still matters. “The office is cold” might concern the room's temperature, the organisation's manner, or a contrast between the two. The same noun therefore does not carry a permanent figurative classification independently of use. A metonymic reference can also occur inside a metaphorical statement.

Simile: explicit comparison

A simile marks a comparison, often with like or as. However, those words do not guarantee a figurative comparison: “This chair is like the other chair” may concern ordinary similarity between two chairs. Conversely, a metaphor can be developed without a simple “X is Y” construction.

Compare “The explanation is a bridge” with “The explanation is like a bridge”. The second explicitly offers a comparison; the first presents the description more directly. Whether this difference changes interpretation, force or processing is a question for the particular passage or experiment. It is not safe to assume that adding like leaves everything else unchanged.

Analogy: comparing relations

An analogy can develop a structured comparison over several sentences. For example, communication between two teams may be compared with crossings between shores: messages correspond to travellers, channels to crossing routes, and congestion to delays. The explanatory value depends on which relationships hold and where the comparison stops.

A strong analogy includes limits. Teams can belong to several projects at once, while the simple two-shore picture may suggest only two fixed sides. Identifying this mismatch improves the explanation. An analogy does not become a demonstration merely because its source situation is familiar.

Conceptual Blending and Mental Spaces considers how selected elements can additionally be combined into an imagined situation with new relations. Comparison and combination are related operations but need not be treated as identical.

Symbol: convention and a particular work

A bridge in an emblem may symbolise connection through an established public convention or an explanation supplied by its designers. A bridge in a novel may acquire significance through repeated appearances and its role in the plot. These are different grounds for interpretation. Neither establishes what every bridge means in dreams, myths or conversation.

Terminology also differs between semiotic theories. Saussure's Cours distinguishes the fully arbitrary linguistic sign from its particular use of symbol, which retains some motivated relation. A general comparison page should state the intended sense rather than present one terminology as universal.

How to handle an ambiguous case

Record the complete expression and its context. Identify what is being referred to, compared or represented. State a candidate analysis and test it against another. Keep the level of analysis clear: a word's conventional sense, a speaker's use, a literary pattern and a reader's response are different objects of study.

When a label remains uncertain, explaining the competing relationships is often more informative than forcing a choice. The aim is a clearer account of the example, not a taxonomy with no difficult cases.

Related pages

• Metaphor Categories
• Semiotics
• Interaction Theories of Metaphor
• Metaphor and Polysemy: How Words Acquire Related Meanings
• Metaphor Identification and Corpus Research
• Metaphor Research Library