Isaac
Americannoun
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(in the Bible) a son of Abraham and Sarah, and the father of Jacob.
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a male given name: from a Hebrew word meaning “laughter.”
noun
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Abraham was prepared to sacrifice Isaac at God's request. (See Abraham and Isaac.)
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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.
Galileo Galilei and Isaac Newton recognized this universality of free fall centuries ago.
From Science Daily ● Sep. 18, 2026
In this week’s episode of The Envelope, ‘Frankenstein’s’ Oscar Isaac and ‘Sinners’’ Wunmi Mosaku talk about making personal connections to their hit horror epics.
From Los Angeles Times ● Sep. 16, 2026
Elsewhere, the second season of Netflix's Beef could be a strong contender in the limited or anthology series category, and win acting prizes for its stars Carey Mulligan and Oscar Isaac.
From BBC ● Sep. 13, 2026
As we usher in the Jewish year of 5787, this is a time for American Jews to think more deeply about their faith in, and their relationship with, the God of Abraham, Isaac and Jacob.
From The Wall Street Journal ● Sep. 10, 2026
Isaac, always the responsible older brother, gives Jacob and me a little extra of his portion, and we accept those morsels gratefully.
From "Across So Many Seas" by Ruth Behar
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
