Dictionary.com

Isaac

[ ahy-zuhk ]
/ ˈaɪ zək /
Save This Word!

noun
a son of Abraham and Sarah, and father of Jacob. Genesis 21:1–4.
a male given name: from a Hebrew word meaning “laughter.”

COMPARE MEANINGS

Click for a side-by-side comparison of meanings. Use the word comparison feature to learn the differences between similar and commonly confused words.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Isaac in a sentence

British Dictionary definitions for Isaac

Isaac
/ (ˈaɪzək) /

noun
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

Cultural definitions for Isaac

Isaac

The son of Abraham and the father of Jacob and Esau.

notes for Isaac

Abraham was prepared to sacrifice Isaac at God's request. (See Abraham and Isaac.)
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK