Windows let light.

Meaning: This means the windows of the sandcastle allow light to enter the inside.

Choice of Words: Windows are openings in a building that allow light to enter. Let means to allow or permit. Light refers to the natural illumination provided by the sun. When you put them together, "Windows let light" describes the function of the windows in a sandcastle, allowing light to enter the inside.

Alternative Expressions

Windows allow light.

Meaning: This means that windows are openings in buildings that let light come in. It's like saying, The openings in the walls have clear glass that lets the sunlight come inside.

Choice of Words: Windows are openings in walls or roofs that are covered with glass or other transparent materials to let in light and air. Allow means to permit or make possible. Light is the natural agent that stimulates sight and makes things visible.

Windows make it possible for light to enter.

Meaning: This means that windows allow light to come inside. It's like saying, The openings in the walls have clear glass that lets the sunlight come in.

Choice of Words: Windows are openings in walls or roofs that are covered with glass or other transparent materials to let in light and air. Make means to cause or bring about. Possible means capable of happening or being done. Enter means to come or go into.

Light can come through windows.

Meaning: This means that windows allow light to pass through them. It's like saying, The clear glass in the openings of the walls lets the sunlight pass through and come inside.

Choice of Words: Light is the natural agent that stimulates sight and makes things visible. Can means to be able to or have the ability to do something. Come means to move towards or arrive at a place. Through means passing from one side of something to the other.

Related Expressions