Crevice (noun)

1. A narrow crack or fissure in a surface.
2. A small opening or gap between two surfaces.
3. A narrow opening or split in a surface or object.
4. A small gap or fissure in a rock, wall, or surface.
5. A narrow, elongated opening or space in a surface or object.

Origin:

From the latin word crevus, meaning 'broken, cracked, split'.

Examples:

1. The plant had taken root in a crevice in the rock and was now growing strong.
2. The crevice in the wall was just wide enough for the mouse to squeeze through.
3. The crevice in the cliff was filled with debris from years of wind and erosion.
4. The crevices in the old wooden fence provided excellent hiding places for the birds.
5. The crevices between the stones in the old castle wall were filled with moss and lichen.