English Reference

Word

generator

Phoneticsgen·er·a·tor, stress on the first syllable

US/ˈdʒɛnɝˌeɪtɝ/

UK/dʒˈɛnəɹˌeɪtɐ/

Definitions

01electricity machine

B1 · Intermediate Countable noun

n. a machine that turns fuel or movement into electricity.

n. a machine that converts mechanical energy into electrical energy.

“When the storm knocked out the power, the hospital used a backup generator.”

“The construction site relied on a portable diesel generator to power the heavy machinery before the main electrical grid was connected.”

Usage

Often used with modifiers like 'backup', 'portable', or 'emergency'.

Synonyms

02software/computing

B2 · Upper Intermediate Countable noun Computing Technical

n. a computer program or tool that creates data, text, or images.

n. a routine or program that produces a sequence of results or specific data structures.

“I used an online password generator to create a secure login.”

“The developer implemented a procedural terrain generator to create unique landscapes for every new game session.”

Usage

Commonly appears in compound nouns like 'random-number generator' or 'static-site generator'.

Synonyms

03source or creator

C1 · Advanced Countable noun Academic · Formal

n. a person, thing, or event that causes something to happen or exist.

n. an agent, person, or entity that originates or produces a particular state or substance.

“The new factory will be a major generator of jobs for the local community.”

“Tourism has become the primary generator of foreign exchange for the small island nation over the last decade.”

Teaching tip

In formal writing, this is often used to describe abstract things like 'revenue', 'interest', or 'employment'.

04mathematics

C2 · Proficiency Countable noun Mathematics Technical

n. a point, line, or shape that is used to create a larger geometric figure.

n. an element of a group or a geometric figure that can be used to define or create the entire structure.

“The teacher explained how a circle can act as a generator for a cylinder.”

“In group theory, a generator is an element that, when combined with itself repeatedly, produces every other element in the set.”

Etymology

From Latin, from past participle of genero (“beget, father”), equivalent to generate + -or.

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

Word family

NOUN

generator(B1)

Domains

ChemistryMathematicsMusicProgramming

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.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL 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: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · Intermediate
Updated

QR code

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English Reference