UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈɑːbə/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/ˈɑrbɚ/ ,USA pronunciation: respelling(ärbər)

Inflections of 'arbor' (nnoun: Refers to person, place, thing, quality, etc.): nplplural noun: Noun always used in plural form--for example, "jeans," "scissors.": arbores

WordReference Random House Learner's Dictionary of American English © 2020
ar•bor1 /ˈɑrbɚ/USA pronunciation   n. [countable]
  1. Botanya leafy shelter formed by or covered with tree branches, shrubs, etc.

WordReference Random House Unabridged Dictionary of American English © 2020
ar•bor1  (ärbər),USA pronunciation n. 
  1. a leafy, shady recess formed by tree branches, shrubs, etc.
  2. a latticework bower intertwined with climbing vines and flowers.
  3. [Obs.]a grass plot* lawn;
Also,[esp. Brit.,] arbour. 
  • Anglo-French, Old French (h)erbier herbarium; respelling, respelled with -or under the influence of arbor3
  • Middle English (h)erber 1350–1400

ar•bor2  (ärbər),USA pronunciation n. 
  1. Mechanical Engineering[Mach.]
    • 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. Cf. mandrel.
    • a beam, shaft, axle, or spindle.
  2. Metallurgya reinforcing member of a core or mold.
  • Latin arbor wooden beam or part in an olive press, tree
  • French, Old French
  • respelling, respelled, by association with arbor3, of earlier arber, arbre 1650–60

ar•bor3  (ärbər),USA pronunciation n., pl.  ar•bo•res (ärbər),USA pronunciation [Bot.]
  1. Botanya tree.
ar′bo•resque, adj. 
  • Neo-Latin, Latin: tree.
  • 1660–70

Collins Concise English Dictionary © HarperCollins Publishers::
arbor /ˈɑːbə/ n
  1. the US spelling of arbour
arbor /ˈɑːbə/ n
  1. a rotating shaft in a machine or power tool on which a milling cutter or grinding wheel is fitted
  2. a rotating shaft or mandrel on which a workpiece is fitted for machining
Etymology: 17th Century: from Latin: tree, mast
WordReference Random House Unabridged Dictionary of American English © 2020
ar•bour  (ärbər),USA pronunciation n. [Chiefly Brit.]
  1. British Termsarbor1.

Collins Concise English Dictionary © HarperCollins Publishers::
arbour /ˈɑːbə/ n
  1. a leafy glade or bower shaded by trees, vines, shrubs, etc, esp when trained about a trellis
Etymology: 14th Century erber, from Old French herbier, from Latin herba grass
'arbor' also found in these entries (note: many are not synonyms or translations):
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