täpuse

Täpuse is not a standard Estonian lexical item in most dictionaries. In practice, it is typically encountered as a nonstandard form or a misspelling of the noun täpsus, which means precision or accuracy. Täpsus is a common term in science, engineering, statistics and everyday language, and its genitive singular is täpsuse. The form täpuse has no widely recognized independent meaning in standard Estonian and is generally treated as an error or as a context-specific name rather than a separate concept.

Possible origins of the form include a mistaken analogy with other declensions, influence from dialectal speech, or transcription in user-generated texts where spelling norms are less strictly observed. Because Estonian has a regular system of case endings, using täpuse where täpsuse is required can lead to grammatical and stylistic mistakes, particularly in formal writing or technical documentation.

Usage and guidance for editors and learners: if you see täpuse in a text, assess whether it is a simple misspelling of täpsuse or if it appears as part of a proper noun or a coined term. In most cases, the correct genitive construction related to precision should be täpsuse, as in mõõtmise täpsuse (the accuracy of measurement). Language resources typically flag täpuse as nonstandard.

See also: täpsus, täpsuse, Estonian grammar.