Arbor Day

noun

: a day designated for planting trees

Examples of Arbor Day in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The nonprofit development group will host a groundbreaking event on Arbor Day as a fundraiser for the project. — Neal Franklin, Dallas Morning News, 1 Mar. 2026 Every candle sold helps plant a tree through the Arbor Day Foundation, and many collections, such as the Pride line, donate a portion of proceeds to organizations. — Jason Phillips, USA Today, 5 Aug. 2025 The 21st Arbor Day celebration was organized by Harford County to plant native trees throughout the County. — The Aegis, Baltimore Sun, 3 Apr. 2026 While National Arbor Day is always in April, many Floridians do not know that Florida’s Arbor Day is the third Friday in January. — Larry Figart, Florida Times-Union, 14 Jan. 2026 See All Example Sentences for Arbor Day

Word History

Etymology

Latin arbor tree

First Known Use

1863, in the meaning defined above

Time Traveler
The first known use of Arbor Day was in 1863

Rhymes for Arbor Day

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Browse Nearby Words

arborary
Arbor Day
arboreal
See all Nearby Words

Cite this Entry

“Arbor Day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Arbor%20Day. Accessed 7 Jul. 2026.

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Kids Definition

Arbor Day

noun
: a day in April set aside as a day to plant trees

More from Merriam-Webster on Arbor Day

Britannica.com: Encyclopedia article about Arbor Day

Last Updated: - Updated example sentences
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