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Lexeme

A lexeme () is a unit of lexical meaning that underlies a set of words that are related through inflection.

Version
v1 · 2026-09-28 · History
Domain-specific #
10382
Domain group
Humanities
Origin domain
Linguistics & Semiotics
Subdomain
Morphology → Linguistics & Semiotics

Core Idea

Lexeme is treated here as the recurring morphology identity summarized by this source-grounded definition: A lexeme () is a unit of lexical meaning that underlies a set of words that are related through inflection. A lexeme () is a unit of lexical meaning that underlies a set of words that are related through inflection. It is a basic abstract unit of meaning, a unit of morphological analysis in linguistics that roughly corresponds to a set of forms taken by a single root word.

Scope of Application

  • Description. For example, the lexeme RUN has a present third person singular form runs, a present non-third-person singular form run (which also functions as the past participle and non-finite form), a past.

  • Description. In the case of English verbs such as RUN , they include subject–verb agreement and compound tense rules, which determine the form of a verb that can be used in a.

  • Decomposition. The decomposition stem + desinence can then be used to study inflection.

  • Documented setting. The lemma is the form used in dictionaries as an entry's headword.

  • Description. The notion of the lexeme is central to morphology, the basis for defining other concepts in that field.

Clarity

A clear use of Lexeme names the carrier, the operative relation, and the conditions under which the source treats the identity as present. The minimal definition is A lexeme () is a unit of lexical meaning that underlies a set of words that are related through inflection.

Manages Complexity

Lexeme compresses multiple morphology details into a stable diagnostic relation. The source shows both the central mechanism—a lexeme () is a unit of lexical meaning that underlies a set of words that are related through inflection.—and the practical consequence—for example, the difference between inflection and derivation can be stated in terms of lexemes. This compression makes cases comparable while leaving parameters, conventions, exceptions, and evidential quality explicit.

Abstract Reasoning

  1. Type the carrier. Identify the morphology entities to which the claim applies.
  2. State the relation. Use the source-grounded identity: A lexeme () is a unit of lexical meaning that underlies a set of words that are related through inflection.
  3. Check operation and conditions. It is a basic abstract unit of meaning, a unit of morphological analysis in linguistics that roughly corresponds to a set of forms taken by a single root word.
  4. Demand recognition evidence.

Knowledge Transfer

Within the home domain. Knowledge about Lexeme transfers literally when a new case preserves the same carrier type, relation, and recognition test. For example, the lexeme RUN has a present third person singular form runs, a present non-third-person singular form run (which also functions as the past participle and non-finite form), a past form ran, and a present participle running. In the case of English verbs such as RUN , they include subject–verb agreement and compound tense rules, which determine the form of a verb that can be used in a given sentence. Beyond the home domain.

Relationships to Other Abstractions

Local relationship map for LexemeParents appear above the current abstraction, mutual partners to the right, and children below. Node labels state whether each abstraction is prime or domain-specific; colors identify relation types.LexemeDOMAINDomain-specific abstraction: Lexical function — presupposesLexical functionDOMAINDomain-specific abstraction: Troponymy — presupposesTroponymyDOMAIN

Current abstraction Lexeme Domain-specific

Foundational — no parent edges in the catalog.

Children (2) — more specific cases that build on this

  • Lexical function Domain-specific presupposes Lexeme

    A lexical function maps or relates lexical units, so lexemes are necessary typed arguments of the reviewed relation.

  • Troponymy Domain-specific presupposes Lexeme

    Troponymy is a manner relation between lexemes and cannot be instantiated without lexical units as its endpoints.

Neighborhood in Abstraction Space

Lexeme sits in a sparse region of the domain-specific corpus (67th percentile for distinctiveness): few abstractions share its structure, so a faithful description tends to retrieve it precisely.

Family — Unclustered & Miscellaneous (2551 abstractions)

Nearest neighbors

Computed from structural-signature embeddings · 2026-10-08