Definition of "Isaac"

Isaac

/ˈaɪzək/

proper noun
countable and uncountable, plural Isaacs
1. The son of Abraham and Sarah, father of Esau and Jacob, from whom the Hebrew people trace their descent.
  Quotations
  And Abraham circumciſed his ſonne Iſaac, being eight dayes old, as God had commanded him.
  1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], Genesis 21:4, column 1
2. A male given name from Hebrew.
3. A surname originating as a patronymic.
4. Isaac Region, a local government area in central Queensland, Australia, named after the Isaac River.