ENGLISH
REFERENCE

refinery

n. countable
C1 Advanced US //ɹɪˈfaɪnɝi// UK //ɹɪfˈaɪnəɹˌi// re·fin·ery

n. a large factory where raw materials like oil or sugar are cleaned and turned into useful products. You usually find these in industrial areas near ports or oil fields.

n. an industrial installation where crude substances, such as petroleum or sugar, are processed and purified into marketable products. Often used in technical or economic contexts regarding energy and commodities.


SIMPLE

The oil refinery operates twenty-four hours a day.

CONTEXTUAL

Local residents expressed concerns about the air quality near the new sugar refinery being built on the coast.

COMPLEX

The global supply chain for gasoline is highly sensitive to any mechanical failure or scheduled maintenance at a major regional refinery.

Origin

From refine + -ry.

Usage

Often modified by the material being processed, such as 'oil refinery', 'sugar refinery', or 'metal refinery'.

© 2026 English Reference