vodní

Vodní is an adjective in Czech meaning relating to water or water-based. It is formed from the noun voda (water) with the adjectival suffix -ní and is used to describe substances, places, processes, or activities connected with water. The term is neutral and widely used across domains such as science, geography, engineering, ecology, and everyday language.

In usage, vodní is typically placed before the noun it modifies and combines with many common terms. Examples include vodní tok (watercourse), vodní plocha (body of water), vodní nádrž (water reservoir), vodní elektrárna (hydroelectric power plant), vodní rostliny (aquatic plants), vodní ptactvo (water birds), and vodní sporty (water sports). It also appears in technical phrases such as vodní režim (hydrological regime) or vodní hospodářství (water management).

Etymologically, vodní derives from the Czech word voda (water) and reflects a common pattern of forming adjectives from nouns to describe related characteristics. As a descriptive element, vodní is versatile and continues to be part of everyday language as well as scientific and administrative terminology, enabling precise reference to water-related phenomena, objects, and activities.