- a leafy, shady recess formed by tree branches, shrubs, etc.
- a latticework bower intertwined with climbing vines and flowers.
- a grass plot; lawn; garden; orchard.
- Machinery.
- a bar, shaft, or axis that holds, turns, or supports a rotating cutting tool or grinding wheel, often having a tapered shank fitting tightly into the spindle of a machine tool.
- a beam, shaft, axle, or spindle.
- a reinforcing member of a core or mold.
- a tree.
- the US spelling of arbour
- a rotating shaft in a machine or power tool on which a milling cutter or grinding wheel is fitted
- a rotating shaft or mandrel on which a workpiece is fitted for machining
- a part, piece, or structure used to reinforce the core of a mould
