you'll never know

idiom

Definition of you'll never know 

: you will never be fully aware (of the extent or degree of something) You'll never know what this means to me.

Learn More about you'll never know

Share you'll never know

Statistics for you'll never know

Look-up Popularity

Comments on you'll never know

What made you want to look up you'll never know? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

not any or not one

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Bee Cubed

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

TAKE THE QUIZ

Love words? Need even more definitions?

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