glass window

See-through building opening

A glass window is a window fitted with glass panes, as opposed to open shutters, oiled paper, or other historical alternatives.

The phrase is largely redundant in modern usage, since windows today are assumed to have glass unless otherwise specified.

It occasionally appears for emphasis or in historical contexts: The cottage had actual glass windows, a luxury for the time.

Opposites
transparency and openness

glass windowbrick wall

Stacked masonry partition

concrete wall · blank wall · stone wall · partition wall · blackout curtain

material composition

glass windowsteel plate

Flat piece of alloy

concrete slab · stone block · metal sheeting · drywall

enclosure vs. opening

glass windowopen air

Unenclosed outdoor space

void

Family

glass, window, glasses, glassy, windshield, glassware, glazing, windowed, magnifying glass

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G