flint
Flint (noun) means a hard, fine-grained rock that produces sparks when struck against steel. Example: “Early humans used flint to make sharp tools and start fires.”
How to use flint
Learner’s notesIn plain EnglishA hard stone that sparks when struck, historically used for tools and fire-starting, and still used in some lighters.
Word forms
- Plural
- flints
- Third person singular
- flints
- Past tense
- flinted
Fill the gap
Can you complete this real example?
Early humans used _____ to make sharp tools and start fires.
Etymology
From Old English flint, from Proto-Germanic roots meaning "to split" — reflecting how the stone fractures into sharp flakes.