name
Isaac
EYE-zuhk
name
1
In the Bible, the son of Abraham and Sarah, and father of Esau and Jacob.
"The story of Isaac appears in the Book of Genesis."
2
A male given name from Hebrew, also used as a surname.
"Isaac Newton made major discoveries in physics."
How to Use Isaac
Learner’s notesIn plain EnglishA biblical figure and a common male first name/surname derived from his story.
Word Forms
Isaacs plural
Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “Isaac”
A quick quiz — meaning, synonyms & usage
→
Fill the Gap
Can you complete this real example?
The story of _____ appears in the Book of Genesis.
Etymology
From Hebrew Yitzhak, meaning "he laughs" — according to Genesis, a reference to his mother Sarah laughing when told she would have a child in old age.