from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A staple or necessary food, especially bread.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Bread, or some other staple foodstuff.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. food made from dough of flour or meal and usually raised with yeast or baking powder and then baked
By extension from Biblical phrase break the staff of bread. (Wiktionary)