Úast
Úast is a nonstandard spelling that may appear in texts where diacritics are omitted or in OCR/transcription outputs. It does not correspond to a widely recognized, independent word in standard Czech or Slovak usage. Instead, similar sequences with diacritics carry distinct meanings in those languages.
In standard Czech, the closest related word is účast, meaning participation or attendance. In Slovak, a corresponding
Because diacritics can change meaning, the presence of the form úast is usually attributed to orthographic