Jacob

Short definition from Wiktionary

Proper noun

1. 1
   A male given name from Hebrew.
2. 2
   A male given name from Hebrew: One of the sons of Isaac and Rebecca, and twin brother of Esau; father of the Israelites (Jews and Samaritans) by 12 sons by 4 consorts, most famously Judah and Joseph who fathered Manasseh.
3. 3
   A male given name from Hebrew: The fifth son of Lehi and one of the younger brothers of Nephi, author of one of the books in the Book of Mormon.

Noun

1. 1
   A breed of multihorned sheep.
2. 2
   A ladder.