Explanation
A word class groups words by grammatical criteria. Inflectional possibilities, syntactic distribution and combinability may be relevant; meaning alone usually does not determine membership. In conversion, an expression is used in another word class or analysed as a new lexeme without an overt derivational affix. Whether a class change actually occurs must be tested in the construction. Different grammars may also adopt different classifications. A label such as noun therefore cannot replace the criteria by which that label is assigned in a language.
Movement of thought
1. State the classification criteria. 2. Examine distribution. 3. Test inflection. 4. Compare changes of use. 5. Record theoretical alternatives.
Scientific use case
Comparative grammar can establish which tests distinguish particular word classes.
Example
English bottle can function as a noun; in “They bottle the juice”, bottle has verbal properties.
Counterexample
An expression naming an activity is not thereby a verb.
Distinction
Distinguish word class from semantic category, clause function and graphic form alone.
Effect on thought and perception
Word classes organise forms by grammatical behaviour.
Resonance
A word's role also appears in the neighbours it permits.
Provenance
Parallel corpus 98f0950771ae4662f291d2f15f5c51b6797f3c20ba458a68615cdb177002ea18; case-bounded source review accepted; human specialist review not claimed.
Cite this entry
Reich, Michael (Hrsg./ed.): „Word class“. Atlas der Sprache, AT-NAV-G05-046. ATLAS 259, data model 1.6.0. https://atlasoflanguage.com/concept/AT-NAV-G05-046The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.