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

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.

From Los Angeles Times

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

From Los Angeles Times

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.

From Los Angeles Times

At times during the season, when multiple players were on minutes limits, Lue was asked to coach off an index card that outlined preferred rotation patterns.

From Los Angeles Times

I keep a picture of that young boy now in my studio, one I cut out from a newspaper and mounted on an index card.

From Salon