- arborA shady sitting place or pergola usually in a park or garden, surrounded by climbing shrubs, vines or other vegetation.
- arbourUK standard spelling of arbor.
- arboricultureThe branch of horticulture concerned with the planting, growth, and maintenance of trees.
- arboreousHaving the characteristics of a tree. (of a plant)
- arboricityThe minimum number of forests into which the edges of an undirected graph may be partitioned.
- arboriformResembling a tree in shape or appearance.
- arborolSynonym of dendrimer.
- arborolatryThe worship of trees.