A small room used for storage, especially for boxes, luggage, or items not frequently used.
Compound of 'box' (container or the room's function of storing boxes) and 'room' (from Old English 'rum,' space or chamber), common in British English.
British homes are famous for their 'boxrooms,' a term almost unknown in American English despite Americans having similar spaces—showing how architectural vocabulary is deeply tied to cultural building styles.
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