Explanation
Homonymy occurs when the same spoken or written form realises lexically distinct meanings. “Bank” can denote a financial institution or the side of a river; context normally selects one reading without requiring a sufficiently close synchronic semantic bridge between them. Some homonyms descend from historically different words, while others arise through phonological convergence. The boundary with polysemy nevertheless remains a reasoned lexicographic decision: speakers may also create new connections between readings previously kept apart. Homonymy shows that identity of form does not guarantee identity of meaning. Interpretation must use syntactic environment, lexical field, frequency, and situation to decide which lexical sign a shared surface currently realises.
Movement of thought
1. An identical word form appears in markedly different contexts of use. 2. Its meanings are described separately and examined for possible connections. 3. Where no defensible synchronic bridge remains, distinct lexical units are postulated. 4. Context, history, and speaker judgements test the stability of that separation. 5. The shared surface returns as a crossing of different semantic paths.
Scientific use case
Lexicographic corpus analysis can compare collocations, syntax, and historical origin across readings. Psycholinguistic experiments can measure how contextual strength and meaning dominance affect resolution.
Example
“She waited by the bank” can identify a financial building or the side of a river. Further context must decide which lexical path the shared form activates.
Counterexample
“Bank” in “central bank” and “local bank” merely specifies one institutional meaning. Difference between individual referents does not by itself establish homonymy.
Distinction
Distinguish homonymy from polysemy, homophony, homography, and vagueness. Polysemy involves related readings; homophony or homography concerns only shared spoken or written form and need not amount to complete homonymy.
Effect on thought and perception
Homonymy turns one expression into a crossroads and reveals how strongly lexical interpretation depends on contextual selection.
Resonance
One word form carries separate voices that need not be related; the situation decides which one becomes audible.
Cite this entry
Reich, Michael (Hrsg./ed.): „Homonymy“. Atlas der Sprache, AT-SEM-0001. ATLAS 260, data model 1.6.0. https://atlasoflanguage.com/concept/AT-SEM-0001The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.
Historical background
Mill separates the visible or audible expression from the logical name operating in an argument. Where one word has more than one signification, his analysis treats it as more than one name rather than allowing the shared form to guarantee identity. This is a historical background for homonymy, although Mill’s category of equivocation is broader than modern distinctions based on unrelated lexical senses. The Atlas can use the passage to expose a recurrent reasoning error: repeating a word does not prove that the same concept has been maintained. Yet a genuine contrast must be established from usage, not declared whenever an argument becomes inconvenient. The inspected English philosophical text supplies a conceptual stage, while the lexical history of homonymy and its boundary with polysemy require separate treatment.
How conceptual history changes the analysis
Repeating a word does not guarantee conceptual identity, but differing meaning does not automatically establish homonymy.
References for the historical section
- John Stuart Mill, A System of Logic, Ratiocinative and Inductive, eighth edition, New York: Harper & Brothers, 1882; Project Gutenberg ebook 27942 · Book I, Chapter II: an equivocal word treated as more than one name
Selected passage, not a complete genealogy or an English first-attestation claim. Original Atlas applications are editorial interpretations, not reported experiments. Selected named passages read in the transcription. The title page identifies an 1882 printing of the eighth edition, not the first edition. No claim that these passages were present unchanged in the first edition; no first-attestation or exhaustive reception claim.