Definition

Noun: A secondary window installed on the outside of a primary window. Its primary function is to provide an extra layer of insulation and protection against severe weather conditions, such as wind, rain, and cold temperatures.

Usage

A storm window is a practical addition to a building's exterior. It is mounted over an existing window to improve energy efficiency and weatherproofing. It is commonly used in climates with harsh winters or frequent storms.

Examples

• The old house had original wooden windows, so we installed storm windows to reduce drafts and heating costs.
• Before the hurricane arrived, he made sure all the storm windows were securely fastened.
• A good storm window can significantly improve a home's insulation.

Advanced Usage

• "to put up/take down the storm windows": This phrase describes the seasonal action of installing storm windows (typically in autumn) and removing them (typically in spring).
  • It's getting colder; I need to put up the storm windows this weekend.
  • We usually take down the storm windows in April when the weather warms up.

Variants and Related Words

• Storm door (noun): A similar secondary door installed outside a primary door for added insulation and protection.
  • They have a glass storm door to let in light while keeping the cold air out.

Synonyms

• Secondary window
• Insulating window
• Weather window (less common)

Related Terms

• Double-glazing: A modern window construction where two panes of glass are sealed in a single unit for insulation. While serving a similar purpose, double-glazing is integrated, whereas a storm window is a separate, add-on unit.
• Window insulation: The general concept of reducing heat transfer through a window, which a storm window helps to achieve.

Noun

1. a window outside an ordinary window to protect against severe weather or winter