Dimple (noun)

1. A small indentation or depression in a surface.
2. A small natural indentation in a person's cheek, especially when smiling.

Origin:

Middle english: from old english dimpel, of germanic origin.

Examples:

1. The dimple in her cheek appeared every time she smiled.
2. The golf ball had a dimple pattern on it to reduce air resistance.
3. The dimple in the ground was caused by heavy rain.
4. The dimple on the apple was the only imperfection on the otherwise perfect fruit.
5. The dimple on the glass bottle was the only sign that it had been dropped.