1 [pluhm]
the drupaceous fruit of any of several trees belonging to the genus Prunus, of the rose family, having an oblong stone.
the tree itself.
any of various other trees bearing a plumlike fruit.
the fruit itself.
a raisin, as in a cake or pudding.
a deep purple varying from bluish to reddish.
Informal. an excellent or desirable thing, as a fine position: The choicest plums went to his old cronies.
Informal. an unanticipated large increase in money or property, as an unexpected legacy; a windfall: The company offered bonuses and other plums.
Also called displacer. a large stone used in massive concrete construction.
adjective, plummer, plummest.
extremely desirable, rewarding, profitable, or the like: a plum job in the foreign service.

before 900; Middle English; Old English plūme (cognate with German Pflaume) ≪ Greek proûmnon plum, proúmnē plum tree; cf. prune1

plumlike, adjective Unabridged


2 [pluhm]
adjective, adverb
plumb ( defs 2–6 ).


a city in SW Pennsylvania. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
plum1 (plʌm)
1.  greengage See also damson a small rosaceous tree, Prunus domestica, with white flowers and an edible oval fruit that is purple, yellow, or green and contains an oval stone
2.  the fruit of this tree
3.  a raisin, as used in a cake or pudding
4.  a.  a dark reddish-purple colour
 b.  (as adjective): a plum carpet
5.  informal
 a.  something of a superior or desirable kind, such as a financial bonus
 b.  (as modifier): a plum job
[Old English plūme; related to Latin prunum, German Pflaume]

plum2 (plʌm)
adj, —adv
plumb plumb plumb a variant spelling of plumb

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

O.E. plume, early Gmc. borrowing (cf. M.Du. prume, O.H.G. phruma, Ger. Pflaume) from V.L. *pruna, from L. prunum "plum," from Gk. prounon, later form of proumnon, from an Asiatic language. Change of pr- to pl- is unique to Gmc. Meaning "something desirable" is first recorded 1780, probably in ref. to
the sugar-rich bits of a plum pudding, etc.
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

PLUM definition

A compiler for a substantial subset of PL/I for the Univac 1100, from the University of Maryland.
["PL/I Programming with PLUM", M.V. Zelkowitz, Paladin House, 1978].
The Free On-line Dictionary of Computing, © Denis Howe 2010
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Example sentences
The winds had already affected our local plum and lemon trees.
Sprinkle with icing sugar and serve with plum puree or jam on the side.
Cut each roll in half diagonally and serve immediately, with plum sauce and
  mustard for dipping.
Put the bottle of homemade plum vinaigrette back on the shelf.
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