Ridge (noun)

1. A long, narrow raised section of land.
2. An elongated ridge of a folded or undulating land surface.
3. A raised line or marking on a surface.

Origin:

Middle english: from old english hrycg, of germanic origin; related to dutch rug and german rücken.

Examples:

1. The ridge of the mountain was covered in snow.
2. He walked along the ridge of the hill.
3. The roof was made of clay tiles and had a ridge.
4. The ridge of the sand dune was a popular spot to watch the sunset.
5. The ridge of the fingerprint was used to identify the suspect.