Isaac.
The son of Abraham and Sarah, father of Esau and Jacob, from whom the Hebrew people trace their descent.
Meaning & usage
The son of Abraham and Sarah, father of Esau and Jacob, from whom the Hebrew people trace their descent.
A male given name from Hebrew.
A surname originating as a patronymic.
A local government area in central Queensland, Australia, named after the Isaac River; in full, Isaac Region.
Where this word comes from
From Middle English Ysaac, from Latin Isaac, from Ancient Greek Ἰσαάκ (Isaák), from Hebrew יצחק (Yiṣḥāq, literally “he laughs, he will laugh”). Explained in Genesis as referring to his mother Sarah’s laughing when she was told she would have a son at her old age. The verb is masculine, however, perhaps due to its use as a boy’s name.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.