louver
|lou-ver|
🇺🇸
/ˈluːvər/
🇬🇧
/ˈluːvə/
angled slat opening
Etymology
'louver' originates from French, specifically the word 'louvre', where the term referred to an opening or roof lantern (a glazed or open structure allowing light or air).
'louvre' entered English from Old/Middle French; over time the spelling and pronunciation developed into the American form 'louver' while British English commonly retained the spelling 'louvre'.
Initially it referred to a roof lantern or opening that admitted light or air; over time the meaning narrowed to denote angled slats or the assembly of slats used for ventilation and shading.
Meanings by Part of Speech
Noun 1
a slatted or angled opening (or the assembly of such slats) that allows air or light to pass while keeping out rain, direct sun, or sight.
The attic had a louver to ventilate the space.
Synonyms
Antonyms
Noun 2
one of the individual slats or blades that make up a louver assembly.
He cleaned each louver to remove dust.
Synonyms
Verb 1
to furnish, equip, or fit with louvers; to provide ventilation using louvers.
They louver the shed to improve airflow.
Synonyms
Antonyms
Last updated: 2025/09/04 08:55