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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.

Texas State first baseman Jaquae Stewart booted the grounder for an error, allowing Isaac Cadena to score.

From Los Angeles Times • May 30, 2026

O'Neill has had to rebuild his squad since his return with younger players such as Conor Bradley, Shea Charles and Isaac Price becoming key figures in the promising team.

From BBC • May 27, 2026

Canadian Prime Minister Mark Carney on Monday denounced the "appalling treatment" of activists aboard the Gaza-bound aid flotilla as "unacceptable," in a call with Israeli President Isaac Herzog, according to a statement.

From Barron's • May 25, 2026

Researchers have spent more than 225 years trying to improve measurements of big G since Isaac Newton first described gravity mathematically.

From Science Daily • May 18, 2026

As the captives moved south with the British troops, Isaac could hear the far-off sounds of war.

From "In the Shadow of Liberty" by Kenneth C. Davis

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