Climber (noun)

1. A person who climbs mountains or rock faces for pleasure or as a sport.
2. A person who climbs trees or other structures for work or recreation.
3. A plant that climbs or trails, such as a vine or creeper.

Origin:

Late 16th century: from climb + -er.

Examples:

1. The climbers reached the summit of the mountain.
2. The climber was an experienced mountaineer.
3. The arborist was a skilled tree climber.
4. The climber struggled to find handholds on the sheer rock face.
5. The ivy is a common climber plant.