Definition

noun. heavy paper stock cut to a standard size used for recording and storing small amounts of discrete data

Example Sentence

He put the notes for his speech on an index card. Spelled as two words.

Synonyms

system card; 3-by-5 card; 4-by-6 card

Antonyms

pencil

Hear It! Say It! Write It!

index card
Hear It! Say It! Write It!