1
: an underlying layer of vegetation
specifically : the vegetative layer and especially the trees and shrubs between the forest canopy and the ground cover
2
: the plants that form the understory

Examples of understory 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.
Other plants thrive in the woodland understory and cool shade of buildings. — Kim Toscano, Southern Living, 29 Oct. 2026 Bees avoid the gloom of the understory—with few flowers, there’s little to entice them—but wasps don’t mind it, and are attracted to the helleborines by the promise of an intoxicating nectar (itself made by a symbiosis with fungi). — Literary Hub, 20 Aug. 2026 Aspen/alder edges with an understory of hazelbrush are prime Michigan locations. — Tom Huggler, Outdoor Life, 13 Aug. 2026 Fire is an ecologically important player in Arizona’s forests, helping recycle nutrients, prune the understory and spark the germination of seeds. — Shi En Kim, AZCentral.com, 20 July 2026 See All Example Sentences for understory

Word History

First Known Use

1902, in the meaning defined at sense 1

Time Traveler
The first known use of understory was in 1902

Browse Nearby Words

Cite this Entry

“Understory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/understory. Accessed 10 Nov. 2026.

Kids Definition

understory

noun
: the layer of plants and especially the trees and shrubs between the forest canopy and the ground cover

More from Merriam-Webster on understory

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster