Synonyms of thornnext
often attributive
1
a
: a sharp rigid process on a plant
especially : one that is a short, indurated, sharp-pointed, and leafless modified stem compare prickle, spine
b
: any of various sharp spiny structures on an animal
2
: a woody plant bearing sharp impeding processes (such as prickles or spines)
especially : hawthorn
3
: something that causes distress or irritation
often used in the phrase thorn in one's side
4
: the runic letter þ used in Old English and Middle English to represent either of the fricatives \th\ or \t͟h\ and in Icelandic to represent \th\
thorned adjective
thornless adjective
thornlike adjective

Examples of thorn in a Sentence

your constant questions are a thorn in my side
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.
As many see it, a thorn in the EU's side is that major decisions require unanimity among its members. ABC News, 6 Apr. 2026 While not thorns, these foliar teeth can take a bite out of those who attempt to cross a thicket of torch aloes. Joshua Siskin, Oc Register, 4 Apr. 2026 The Epstein files have been a thorn in the DOJ leadership’s side for the past year, culminating in a new law that compelled the department to release all unclassified documents, videos, and photos related to Jeffrey Epstein and Ghislaine Maxwell. David Zimmermann, The Washington Examiner, 3 Apr. 2026 Bondi’s departure follows months of mounting pressure stemming largely from her handling of DOJ’s files on the Jeffrey Epstein investigation, which became a constant thorn in her side. Shelby Talcott, semafor.com, 2 Apr. 2026 See All Example Sentences for thorn

Word History

Etymology

Middle English, from Old English; akin to Old High German dorn thorn, Sanskrit tṛṇa grass, blade of grass

First Known Use

before the 12th century, in the meaning defined at sense 2

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

Browse Nearby Words

Cite this Entry

“Thorn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thorn. Accessed 6 Apr. 2026.

Kids Definition

thorn

noun
1
: a woody plant bearing sharp processes (as prickles or spines)
especially : hawthorn
2
: a sharp stiff process on a plant
especially : a stem modified into a short, stiff, and leafless sharp point
3
: something or someone that causes distress or irritation
often used in the phrase thorn in one's side
thorned adjective
thornless adjective

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