Open Dictionary
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL: www.learnthat.org

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University
{%wordnet%}
Definitions.net
{%definitions_com%}

Videos

Short "hint"

n. - Any of various plants of the genus Centaurea having purple thistlelike flowers.

edit
Usage examples (34)
  • Michigan officials don't expect to wipe out knapweed; the hope is to pare it back.
  • Researchers in Michigan released bugs that feed on spotted knapweed earlier this year.
  • Mauve scabious and darker purple knapweed wave their heads in the aftermath of a summer thunderstorm.
  • Spotted knapweed, also known as starthistle, was introduced in the U.S. from Europe in the late 1800s.
...click for more
Tutoring comment


Tutoring comment not yet available...

add more
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.