Isaac = יצחק (pronounced Yeets-chahk. the "ch" is the guttural sound).
The traditional symbol for Isaac is a ram or a lamb, representing sacrifice and obedience. It often refers to the biblical story of the binding of Isaac, where Abraham was asked by God to sacrifice his son Isaac as a test of faith.
Arabic and Russian
His full name was Sir Isaac Newton. Isaac is his first name.
Hannah Ayscough
Isaac Lidsky's birth name is Isaac Jared Lidsky.
Isaac Lipscomb's birth name is Isaac Edward Lipscomb.
Andrew Isaac's birth name is Andrew Evan Isaac.
Kate Isaac's birth name is Katherine Elizabeth Isaac.
Oscar Isaac's birth name is Oscar Isaac Hernandez.
Isaac Escobedo's birth name is Peter Isaac Escobedo.
Isaac Byrd's birth name is Isaac Byrd III.
Isaac Tigrett's birth name is Isaac Burton Tigrett.