paper mill, paper factory

filature, yarn-making factory

Development environment (in general "DEV")

natural environment

environmental pollution

(programming) production environment

ecologist

(mathematics) rounding

(cooking) preparation of ingredients

(typography) a set of typographic rules as to how certain characters are not allowed at the start or end of a line during line breaking, for example, a start quote 「 is not allowed at the end of a line, an end quote 」, full stop 。 or small kana ぁ is not allowed at the start, etc.