1. a shaded garden structure or bower, typically made of latticework on which climbing plants are grown
2. a rotating shaft or spindle in a machine on which other parts are mounted
Usage: mechanical

Examples

• The rose arbor provided a romantic setting for the wedding ceremony.
• We sat under the grape arbor enjoying the cool shade.
• The climbing vines had completely covered the wooden arbor.
• The machinist carefully mounted the cutting tool on the arbor.
• The drill press arbor needed to be replaced after years of use.
• Honeysuckle grew over the garden arbor, filling the air with fragrance.