: the nut of the oak usually seated in or surrounded by a hard woody cupule of indurated bracts

Illustration of acorn

Illustration of acorn

Examples of acorn in a Sentence

Recent Examples on the Web Each element was meant to represent different aspects of the city’s image — acorns for legacy and history, the hawk for vision and stewardship, cattails for peace and prosperity, flowers for beauty and balance, and the fog to highlight the city as part of the larger Bay Area. Sierra Lopez, The Mercury News, 20 Mar. 2024 Iberico pork is prized for the unique flavor, attributed to the Spanish pigs' diet of acorns. The Arizona Republic, 1 Feb. 2024 The acorns produced by the oaks are an important food source for tribes throughout central and southern Arizona. The Arizona Republic, 29 Feb. 2024 The investigators printed stills from body-cam footage of the acorn falling. Ben Brasch, Washington Post, 14 Feb. 2024 Where the oaks now stand, staff removed a 13-acre grove of eucalyptus in the 1990s and planted well over 10,000 acorns. Alix Soliman, Hartford Courant, 3 Jan. 2024 Leaf mulchers can shred huge amounts of leaves, and some can even mulch sticks, acorns, and other yard debris. Rachel Ahrnsen, Better Homes & Gardens, 28 Feb. 2024 This pattern showcases acorns, oak, and laurel leaves, which are symbols of strength, longevity, and peace. Kaitlyn Yarborough, Southern Living, 27 Feb. 2024 Hernandez was walking back to the patrol vehicle to search Jackson again when an acorn fell on the roof of his patrol vehicle. Ben Brasch The Washington Post, arkansasonline.com, 15 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'acorn.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English akorn, akkorn (partially assimilated to corn "kernel, corn entry 1"), hakerne, accherne, accharne, going back to Old English æcern, going back to Germanic *akrana- (whence also Middle High German ackeran "tree nuts," Old Norse akarn, Gothic akran "fruit, produce"); akin to Old Irish írne "sloe, kernel," Welsh eirin "plums, sloes," aeron "fruits, berries," going back to Celtic *agrinyo-, *agranyo-; perhaps further akin to a Balto-Slavic word with an initial long vowel (Old Church Slavic agoda "fruit," Polish jagoda "berry," Lithuanian úoga)

Note: Taken to be a derivative of Indo-European *h2eǵros "uncultivated field, pasture" (see acre), though this would seem to exclude the Balto-Slavic etymon, which lacks the suffix, from consideration. It is also not clear if fields, uncultivated or not, are the source of wild tree nuts.

First Known Use

before the 12th century, in the meaning defined above

Time Traveler
The first known use of acorn was before the 12th century

Dictionary Entries Near acorn

Cite this Entry

“Acorn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acorn. Accessed 19 Apr. 2024.

Kids Definition

: the roundish one-seeded thin-shelled nut of an oak tree usually having a woody cap

More from Merriam-Webster on acorn

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