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Isaac

American  
[ahy-zuhk] / ˈaɪ zək /

noun

  1. (in the Bible) a son of Abraham and Sarah, and the father of Jacob.

  2. a male given name: from a Hebrew word meaning “laughter.”


Isaac British  
/ ˈaɪzək /

noun

  1. an Old Testament patriarch, the son of Abraham and Sarah and father of Jacob and Esau (Genesis 17; 21–27)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Isaac Cultural  
  1. The son of Abraham and the father of Jacob and Esau.


Discover More

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.

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Pogacar's Mexican team-mate Isaac del Toro remains third and in the white young riders' classification leader's jersey - nine minutes 42 seconds down.

From BBC Jul. 24, 2026

Assisted by his Team UAE colleague Isaac del Toro, Pogacar attacked with more than 25 miles to go, the kind of stunt you don’t pull unless you’re supremely confident.

From The Wall Street Journal Jul. 10, 2026

"Beef," a Netflix anthology, stars Oscar Isaac and Carey Mulligan in its second iteration, which focuses on the explosive dynamic between two couples.

From Barron's Jul. 8, 2026

That distinction belongs to Miguel Ponce and Isaac Brizuela, who were both born in California and part of the 2014 squad.

From Los Angeles Times Jun. 30, 2026

“What happened after I so elegantly passed out? Oh, Isaac will never let me live it down.”

From "The Way to Rio Luna" by Zoraida Cordova

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