jasná

Jasné is a Czech word that functions as the neuter singular form of the adjective jasný, meaning clear, bright, or obvious. It is also used as an interjection meaning “sure” or “okay” in informal speech. The root jas- is tied to light and visibility and has cognates in other Slavic languages.

Grammatically, jasný declines as jasný (masc), jasná (fem), jasné (neuter). In predicative constructions, phrases such as “To je jasné” mean “That is clear” or “That’s obvious.” With neuter nouns or in impersonal clauses the form jasné is used: “Počasí bude jasné” (The weather will be clear). In everyday speech, jasné is also used as a stand‑alone interjection: “Jasné!” meaning “Sure!” or “Of course!” It is typically invariable when used this way.

In practice, jasné appears in many common collocations, including weather talk (“počasí bude jasné”) and commentary (“to je jasné”); it also contrasts with jasný in attributive position (“jasný plán” — a clear plan).

The term is standard in Czech and widely understood; in Slovak the form jasné exists as well with similar uses, though the spelling and pronunciation align with Slovak phonology.