: any of a division (Polypodiophyta) or class (Polypodiopsida) of flowerless spore-producing vascular plants having alternating sporophyte and gametophyte generations
especially : any of an order (Polypodiales) of homosporous plants possessing roots, stems, and leaflike fronds compare seed fern
fernlike adjective
ferny adjective

Examples of fern 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 next day, Ranger Martin located their items under a log in tall ferns. Charna Flam, PEOPLE, 5 Sep. 2025 These materials are timeless year-round and easily adapt with seasonal items like pumpkins and mums in the fall, fresh boxwoods and hydrangeas in the spring, and lush ferns in the summer. Lauren Jones, Southern Living, 4 Sep. 2025 That includes more than 2,000 olive trees, palms, banyans, and other trees — plus over 10,000 plants like cascading ferns, colorful flamingo and water lilies, and flowering orange tulip ginger. Elizabeth Brownfield, Forbes.com, 26 Aug. 2025 This hanging fern would be a handsome addition to hang off your front porch but can also sit pretty on a flat surface of your choosing. Audrey Lee, Architectural Digest, 20 Aug. 2025 See All Example Sentences for fern

Word History

Etymology

Middle English, from Old English fearn; akin to Old High German farn fern, Sanskrit parṇa wing, leaf

First Known Use

before the 12th century, in the meaning defined above

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

Browse Nearby Words

Cite this Entry

“Fern.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fern. Accessed 9 Sep. 2025.

Kids Definition

fern

noun
: any of an order of vascular plants resembling seed plants in having root, stem, and leaflike fronds but reproducing by spores instead of by flowers and seeds
fernlike adjective
ferny adjective

More from Merriam-Webster on fern

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