noun

louver

/ˈluːvər/ · say it: LOO·vur

angled slats admitting air but keeping out rain or light

In more detail

1. (noun) a set of thin slats (thin strips of wood or metal) arranged at an angle in a frame, used to control the flow of air or light while blocking direct view

2. (noun) a window or opening with louvers

Examples

1. The louver on the air conditioner directs cool air into the room.
2. She adjusted the louvers on the blinds to let in more sunlight.

How to use louver

Louver refers to a specific architectural or mechanical feature consisting of angled slats that permit air or light to pass while obscuring visibility or controlling direction. It is common in building design, HVAC systems, and window treatments. The British spelling louvre is equally standard.

Common phrases

louver door
louver window
adjustable louvers
louver blade
louver shutter

Synonyms

slat · blind · shade · vent · grating

Word family

louvered (adjective) · louvre (British spelling)

A common mistake

Learners sometimes confuse louvers with venetian blinds; while related, louvers typically refer to fixed architectural elements, whereas blinds are usually adjustable window coverings.

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