index card
noun
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.
index cards
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pluralof index card.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A photo of his storied office bulletin board on which moveable, color-coded index cards of show sketches are easily re-arranged offers a glimpse of how this works.
From The Wall Street Journal ● Nov. 3, 2025
Iris takes an oddball approach to acclimating her students to French: She extracts personal confessions from them in English, then writes wildly extrapolated versions of the French on index cards.
From New York Times ● Nov. 21, 2024
In addition to being tunable, the new filter is also tiny -- about the same size as a quarter, in contrast to previous generations of YIG filters, which resembled large packs of index cards.
From Science Daily ● May 24, 2024
The wall behind her is dotted with rows of index cards featuring excerpts from the book.
From Los Angeles Times ● Feb. 12, 2024
Ms. Udell counted six blue index cards, shuffled them, and passed them out, along with six fresh copies of the practice part.
From "George" by Alex Gino
