1. volume, size, or magnitude, esp when great
2. the main part the bulk of the work is repetitious
3. a large body, esp of a person he eased his bulk out of the chair
4. (Business / Commerce) unpackaged cargo or goods
5. (Transport / Nautical Terms) a ship's cargo or hold
6. (Communication Arts / Printing, Lithography & Bookbinding) Printing
a. the thickness of a number of sheets of paper or cardboard
b. the thickness of a book excluding its covers
7. (Communication Arts / Journalism & Publishing) (plural) copies of newspapers sold in bulk at a discounted price to hotels, airlines, etc. which issue them free to their customers
in bulk
a. in large quantities
b. (Business / Commerce) (of a cargo, etc.) unpackaged
vb
1. to cohere or cause to cohere in a mass
2. (Business / Commerce) to place, hold, or transport (several cargoes of goods) in bulk
bulk large to be or seem important or prominent the problem bulked large in his mind