Word.ws English Dictionary

don't know

don't know noun: someone who does not give a definite opinion in a questionnaire. Also the alternative form of I don't know.

Noun

don't know (plural don't knows)

  1. Someone who does not give a definite opinion in a questionnaire.
  2. Something about which one is uncertain.

Also used as

don't know is also the alternative form of I don't know.

Forms of don't know

pluraldon't knows

Words formed from don't know

Questions about don't know

What does don't know mean?
Don't know means someone who does not give a definite opinion in a questionnaire.
What part of speech is don't know?
Don't know is a noun.
What is the plural of don't know?
The plural of don't know is don't knows.

Words near don't know in the dictionary

  1. don't judge a book by its cover
  2. don't keep a dog and bark yourself
  3. don't knock it till you've tried it
  4. don't knock it until you've tried it
  5. don't knock yourself out
  6. don't know
  7. don't knowist
  8. don't knows
  9. don't let the bedbugs bite
  10. don't let the door hit you on the way out
  11. don't look a gift horse in the mouth

Source and license

Adapted from Wiktionary: don't know (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-don't know.ogg.

Cite this entry: “don't know.” Word.ws, https://word.ws/don%27t_know. Based on Wiktionary, CC BY-SA 4.0.