English Reference

Word

bulk

US/ˈbəɫk/

UK/bˈʌlk/

Definitions

01the majority

B2 · Upper Intermediate Uncountable noun Academic

n. the largest part of something.

n. the greater part or majority of a whole.

“The bulk of the work was finished by noon, so we took a long break.”

“The bulk of the research funding was allocated to renewable energy projects, leaving little for traditional fossil fuel studies.”

Usage

Usually follows the pattern 'the bulk of [something]'.

Antonyms

02muscle mass

B2 · Upper Intermediate Uncountable noun Informal

n. extra body weight, especially from building muscle.

n. increased body mass, specifically muscle tissue developed through strength training and diet.

“He started eating more protein to add some bulk to his frame.”

“The athlete focused on adding functional bulk during the off-season to improve his performance in contact situations.”

Synonyms

03large quantities

B2 · Upper Intermediate

adj. bought or sold in large amounts, often at a lower price.

adj. relating to goods bought, sold, or transported in large quantities and not in separate packages.

“It is usually cheaper to buy rice in bulk bags rather than small boxes.”

“The company specialises in bulk shipments of raw minerals to industrial manufacturing plants across the continent.”

Usage

Commonly used in the phrase 'in bulk'.

Synonyms

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “bulk” in context.

Verb

01. buy in bulk

“We found that we could save a significant amount of money by buying our office supplies in bulk.”

verb + prep + noun

02. constitute the bulk

“Small and medium-sized enterprises constitute the bulk of the country's economy.”

verb + noun

Adjective

03. sheer bulk

“The sheer bulk of the ancient stone walls made them nearly impossible to penetrate.”

adj + noun

04. vast bulk

“The freighter's vast bulk loomed over the small fishing boats in the harbor.”

adj + noun

Noun

05. bulk buying

“The supermarket chain benefits from bulk buying, which allows them to offer lower prices.”

noun + noun

06. bulk of the work

“Although the project is not finished, we have already completed the bulk of the work.”

noun + of + noun

Preposition

07. in bulk

“Grains and legumes are much cheaper when you purchase them in bulk at the local cooperative.”

prep + noun

Real-World Examples

“But one recent single bulk order from a Canadian company equalled what he would expect to move in seven days.”
BBC News 15 Aug 2026
“Gimon explained that the bulk of new projects are small and mid-size utility-scale solar.”
Ars Technica 15 Aug 2026
“AI firms quietly bulk buying rare books face resistance from booksellers.”
Ars Technica 12 Aug 2026

Etymology

From Middle English bulk, bolke (“a heap, cargo, hold; heap; bulge”), borrowed from Old Norse búlki (“the freight or the cargo of a ship”), from Proto-Germanic bulkô (“beam, pile, heap”), from Proto-Indo-European bʰelǵ- (“beam, pile, prop”). Compare Icelandic búlkast (“to be bulky”), Swedish dialectal bulk (“a bunch”), Danish bulk (“bump, knob”). Conflated with Middle English bouk (“belly, trunk”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

bulk(C1)

ADJECTIVE

Related words

Idioms

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Common
Level
C1 · AdvancedOxford
Updated

QR code

englishreference.com/q/bulk

English Reference