| ARB | of or relating to or formed by trees |
|---|---|
| ARB | any of several Asian and North American conifers of the genera Thuja and Thujopsis |
| ARB | a framework that supports climbing plants |
| ARB | any of several evergreen shrubs of the genus Arbutus of temperate Europe and America |
| ARB | evergreen tree of Pacific North America having glossy leathery leaves and orange-red edible berries |
| ARB | small evergreen European shrubby tree bearing many-seeded scarlet berries that are edible but bland |