sow thistle

\ ˈsau̇- How to pronounce sow thistle (audio) \

Definition of sow thistle

: any of a genus (Sonchus) of spiny weedy Eurasian and African composite herbs including some (such as S. arvensis and S. oleraceus) widely naturalized in North America

First Known Use of sow thistle

13th century, in the meaning defined above

Keep scrolling for more

Learn More about sow thistle

Time Traveler for sow thistle

Time Traveler

The first known use of sow thistle was in the 13th century

See more words from the same century

Statistics for sow thistle

Cite this Entry

“Sow thistle.” The Dictionary, Merriam-Webster Inc., Accessed 10 December 2019.

More from Merriam-Webster on sow thistle Encyclopedia article about sow thistle

Comments on sow thistle

What made you want to look up sow thistle? Please tell us where you read or heard it (including the quote, if possible).


to state or do over again or repeatedly

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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