index card
nounUK /ˈɪn.deks kɑːd/
US /ˈɪn.deks kɑːrd/
A small card with lines on it that you use to write notes.
She wrote her speech on an index card.
RELATED WORDS
OTHER MEANINGS
2. A card used to store information in a card catalog or filing system.
The librarian looked up the book on an index card.
3. A small card used for studying, with a question on one side and the answer on the other.
He flipped through his index cards to memorize the words.
4. A card used to jot down quick reminders or ideas.
I keep index cards by my desk for sudden ideas.