Definition of flint
1
: a massive hard dark quartz that produces a spark when struck by steel
2
: an implement of flint used in prehistoric cultures
3a
: a piece of flint
b
: a material used for producing a spark
especially
: an alloy (as of iron and cerium) used in lighters
4
: something resembling flint in hardness
Test Your Vocabulary
Words Named After People
-
- Namesake of the leotard, Jules Léotard had what profession?

Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share flint
Time Traveler for flint
The first known use of flint was before the 12th century
See more words from the same century