"arbor" in the noun sense
tree (as opposed to shrub)
2. spindle, mandrel, mandril, arbor
any of various rotating shafts that serve as axes for larger rotating parts
3. arbor, arbour, bower, pergola
a framework that supports climbing plants
"the arbor provided a shady resting place in the park"
Source: WordNet® (An amazing lexical database of English)
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