index card

noun

1. a card, often relatively small, as 3 × 5 inches (7.6 × 12.7 centimeters), used in noting or recording information and usually filed in an index.

Word History and Origins

Origin of index card¹

First recorded in 1925–30

Example Sentences

And they had an index card, recently discovered by one of Garcetti’s investigators in the office files, that listed Butler as a D.A. informant.

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This huge life shift prompted him to face down his own lack of financial planning and eventually help demystify the topic for others with his book, The Index Card.

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I wrote this on an index card and kept it in my backpack throughout college to constantly remind me of the goal because being an environmentalist can be discouraging, given the current climate.

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Lincoln Riley’s game plan probably couldn’t fit on anything more than an index card.

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Sitting among dozens of football players in the Rams locker room at SoFi Stadium, the quarterback explained why he had ripped an index card with the word “Black” on it.

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