Skip to content

Bivocalic

bivocalic · letter · validated

A text restricted to two of the vowels, the rest being excluded throughout.

Provenance

  • Source: Word Ways, the Journal of Recreational Linguistics (1968 onwards)
  • Attribution: reference — attested in a standard reference rather than traced to an origin
  • Checkability: self — decidable from the text and its parameters alone
  • Attested: codified — formulated as a rule by a tradition rather than declared by an author

Details

  • Kind: restrictive
  • Languages: en
  • Requires: tokens, fold_diacritics, alphabet
  • Deterministic: yes

Prompt hint

Write a passage using only the vowels "a" and "e".

Parameters

Name Type Default Description
fold_diacritics boolean True Treat accented letters as their base letter, and ß as ss.
vowels — None The two permitted vowels.

Examples

two-vowels-only

en — this text satisfies the procedure.

a bad tea seat

Parameters: vowels='ae'

Source: constructed example

a-third-vowel

en — this text does not satisfy the procedure.

a bad tea sit

Parameters: vowels='ae'

Source: constructed counterexample

two-umlaut-vowels-under-folding

de — this text satisfies the procedure.

Bähö

Parameters: vowels='äö'

Source: constructed example; the same seam as univocalic's umlaut case