Dictionary definition · bulk
noun
- the property resulting from being or relating to the greater in number of two parts; the main part"the majority of his customers prefer it"
- the property of something that is great in magnitude"it is cheaper to buy it in bulk"
- the property possessed by a large mass
verb
- stick out or up"The parcel bulked in the sack"
- cause to bulge or swell outwards
- to gain size and weight by means of exercise and diet
Source: Open English WordNet (CC BY 4.0).