septillion
noun
a cardinal number represented in the U.S. by 1 followed by 24 zeros, and in Great Britain by 1 followed by 42 zeros.
septillions
-
pluralof septillion.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.
Today they perform hundreds of septillions of matrix multiplications to power leading large language models.
From MarketWatch ● May 23, 2026
Why, just with an alphabet of twenty-four letters, Leibnitz the great mathematician, calculated that over six hundred septillions of easily pronounceable words, none over three syllables long, could be arranged.
From The Boy With the U.S. Census by Francis Rolt-Wheeler
After an elaborate computation of hereditary possibilities, biologists announce that the chance of any two human creatures being exactly alike is one in five septillions.
From The New Education A Review of Progressive Educational Movements of the Day (1915) by Scott Nearing
