épületben

épületben is the Hungarian locative form of épület (building). It denotes a location inside a building and is used to specify where an action or state takes place.

Formation and grammar: The locative case is expressed with the suffix -ban or -ben, chosen according to vowel harmony in the word stem. In épületben, the last vowel of the stem is a front vowel, so the form uses -ben rather than -ban. The phrase is typically combined with a definite article, as in az épületben, but it can also appear without the article in general statements.

Usage: épületben is used to describe activities or conditions located inside a building. It contrasts with other spatial markers such as kívül (outside) or belül (inside, in a more general sense). Common contexts include safety notices, travel and accessibility instructions, and everyday statements about where people or objects are located.

Examples:

- A lakók az épületben tartózkodnak. (The residents are inside the building.)

- Kérjük, ne dohányozzon az épületben. (Please do not smoke inside the building.)

- Az iroda az épületben található. (The office is located inside the building.)

Relation to related terms: épületben is a specific locative form of épület; related forms include épületekben (in multiple buildings) and belül (inside in a more general sense). The root épület itself derives from építés, meaning build, with the -ület suffix forming a noun meaning a structure or building.

See also: épület, -ban/-ben locative suffix, inessive case, Hungarian grammar.