Údaj

údaj is a Czech noun meaning a single datum, a fact, or a piece of information. It denotes a discrete unit that can be stored, processed, or transmitted. In everyday speech it refers to any factual detail about a person, event, or phenomenon; in statistics, data processing, and information technology, it is used as a data item or entry.

Forms and usage: the singular form is úd цел? Wait, in Czech the singular nominative is údaj. The plural form is údaje, and the genitive plural is údajů. Common phrases include shromáždit údaje (to collect data), zpracovat údaje (to process data), ověřit údaje (to verify information), and poskytnout jeden údaj (to provide one datum). The word often appears with prepositions such as o (data about) or z (from data).

Contexts and nuance: údaje can refer to data sets, records, or facts used for analysis, reporting, or decision-making. In official and legal language, the term frequently appears in expressions like osobní údaje (personal data) and zpracování osobních údajů (the processing of personal data). In computer science and informatics, údaje are the atomic units that are stored in databases, transmitted over networks, or used in computations. The plural údaje is commonly treated as a mass noun meaning data in general, while the singular údaj denotes a single data point.

Related terms: informace (information), data (often used as a loanword in Czech), záznam (record), and datový item (data item). The distinction between údaj and údaje hinges on singular versus plural usage, with údaje most often referring to data collectively and údaj to an individual datum.