- bulk1 [ bʌlk ] noun **count usually singular something that is very large, wide, and solid:She heaved her formidable bulk off the frail chair.We looked up at the great dark bulk of the cathedral.a. uncount the fact of being large:Despite its bulk and weight, the Mercedes handles like a small car.the bulk of somethingthe majority or largest part of something:Women still undertake the bulk of domestic work in the home.in bulkbought or sold in large quantities:large companies that buy and sell in bulkbulkbulk 2 [ bʌlk ] adjective only before nounrelating to the sale, production, or transportation of goods in large quantities:a producer of bulk agricultural chemicalsbulk order: a bulk order for 100 Christmas treesbulk buying/purchasing/selling etc.: Co-op members get the price benefit of bulk buying.bulkbulk 3 [ bʌlk ] verb,bulk `out phrasal verb transitiveto add something to something else to make it bigger or more satisfactory:You can always bulk out a meal with bread or rice.,bulk `up phrasal verb intransitiveto become bigger and heavier:After bulking up for his last movie role, he's now down to a slim 75 kilos.
Usage of the words and phrases in modern English. 2013.