The mass or magnitude of something large. The bulk of the cargo was loaded onto the ship.
The main or greater part of something. The bulk of the work was completed by the end of the day.
Goods or cargo not in packages or containers. The ship was designed to carry bulk such as grain and coal.
The body of a large person. His bulk made it difficult for him to fit into the small car.
Indigestible dietary fibre that adds volume to food and aids digestion. Whole-grain cereals supply the bulk needed for a healthy digestive system.