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

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


Short "hint"

n. - An inability to sleep.

Usage examples (34)
  • Scientists have concluded that exposure to a bright light source for 30 minutes in the morning or evening may be able to cure insomnia.
  • But my insomnia is like unto the Godzilla of insomnia.
  • Thalamus Damage to the thalamus may result in insomnia (FFI).
  • I think this stretch of insomnia is beginning its third week. 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,,, and YouTube,,,,, as well as the generous Creative Commons community.