In early reading lessons, teachers often introduce closed syllables to help children decode short vowel sounds.

To prove the theorem, we restrict our attention to the closed interval [0,1].

In algebraic topology, a closed curve in a space often represents an element of the fundamental group when considered up to homotopy.

In first-order logic, proving that a closed formula is valid requires showing that it is true under every interpretation.

After the mine shut down, the once-bustling closed town fell silent except for the wind.

The researchers were denied access to the closed city, where entry and residency are tightly controlled.

During the close time, all commercial fishing for trout is strictly prohibited to allow populations to recover.

Please keep the self-closing gate clear of debris so it can operate properly.

When the company loses funding, it closes down its regional offices without notice.

The bakery is closing down after twenty years of serving the neighborhood.