释义 
		[ ey -kawrn, ey -kern ] SHOW IPA 
/ ˈeɪ kɔrn, ˈeɪ kərn / PHONETIC RESPELLING 
noun the typically ovoid fruit or nut of an oak, enclosed at the base by a cupule. 
a finial or knop, as on a piece of furniture, in the form of an acorn. 
Origin of acorn  before 1000; Middle English acorne  (influenced by corn1 ), replacing akern, Old English æcern, æcren  mast, oak-mast; cognate with Old Norse akarn  fruit of wild trees, Middle High German ackeran  acorn, Gothic akran  fruit, yield <Germanic *akrana-;  alleged derivation from base of acre is dubious if original reference was to wild trees
OTHER WORDS FROM acorn acorned,  adjective Words nearby acorn  aconite, aconitine, Connecticut Yankee in King Arthur's Court, A, acorea, Açôres, acorn , acorn barnacle, acorn chair, acorn clock, acorn spoon, acorn squash
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for acorn Perhaps nowhere has an ACORN  spin-off been as successful as one has in New York City.
ACORN’s Seeds Sprout Up Across the Country | David Freedlander| January 13, 2014| DAILY BEAST
ACORN  was able to do a lot of things for low-income people, but they were stopped.
ACORN’s Seeds Sprout Up Across the Country | David Freedlander| January 13, 2014| DAILY BEAST
But my favorite story linked—inevitably—the navigator program to ACORN .
What’s Really Obstructing Obamacare? GOP Resisters | Michael Tomasky| November 2, 2013| DAILY BEAST
These were the adopted symbols of the Vanderbilts, as “from an acorn  a mighty oak shall grow.”
Grand Central Terminal: 100 Years, 100 Facts | Sarah Begley| February 1, 2013| DAILY BEAST
That would be pretty impressive, considering that Acorn  no longer exists as an organization.
Acorn More Powerful Now That It's Dead | Michael Tomasky| December 5, 2012| DAILY BEAST
Is the freeing of the acorn  and its tannin and other objectionable substances a practical consideration?
Northern Nut Growers Association Report of the Proceedings at the | Various
The acorn  trees of the valleys had been taken from them; nothing remained but evil spirits in the land of his forefathers.
Hunting with the Bow and Arrow | Saxton Pope
Mush of acorn  meal which I had left in my pot had been eaten.
The Trail Book | Mary Austin
A staple article of food for the Indians in 1856, by the way, was the acorn .
Sixty Years in Southern California 1853-1913 | Harris Newmark
An apple tree has never grown from an acorn , or a peach tree from a chestnut.
With the Children on Sunday | Sylvanus Stall
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British Dictionary definitions for  acorn noun the fruit of an oak tree, consisting of a smooth thick-walled nut in a woody scaly cuplike base 
Word Origin for acorn C16: a variant (through influence of corn ) of Old English æcern  the fruit of a tree, acorn; related to Gothic akran  fruit, yield
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012