英語

generator

gb/d͡ʒˈɛnɚˌeɪtɚ/ us/d͡ʒˈɛnɚˌeɪtɚ/
B1 英語
~ 5100
語義
0件の語義
名詞 B1 entity
1

machine that produces electricity

A machine that makes electricity, often used when there is no power from the main electricity lines.

用法パターン: a generator to power [something]
よくある間違い:
Learners sometimes confuse a 'generator' with a 'battery'. A generator produces electricity from another form of energy (like gasoline or a motor), while a battery stores electricity. Another confusion is between 'generator' and 'engine': an engine makes mechanical power, and a generator turns that mechanical power into electricity.
類義語
alternator (More technical; usually refers to the generator in a vehicle or a specific type of AC generator.) | power unit (Broader and less specific; can mean any device supplying power, not only electricity generators.)
対義語
power grid (Not a direct logical opposite, but contrasts local, stand-alone power from a generator with electricity supplied from the main grid.)
コロケーション
backup generator |portable generator |diesel generator |electric generator |run a generator |install a generator
テーマ
technology |daily life |energy |science |daily_life
例文
  • We used a small generator to keep the lights on during the storm.
  • The hospital has an emergency generator in case the main power fails.
  • Construction crews often rely on a portable generator for electricity at remote sites.
  • They ran the generator all night to keep the freezers cold.
  • The campsite offers cabins with their own diesel generator.
学習者向け例文
  • The house has a generator for power cuts.
  • We started the generator when the lights went off.
  • The shop uses a big generator to run its machines.
  • They bought a small generator for their camping trip.
名詞 B2 entity
2

person or thing that produces something

A person or thing that makes or causes something, such as ideas, money, or interest.

用法パターン: a generator of [something]
よくある間違い:
Learners may think 'generator' in this sense only means a machine. In modern English, it is often used for abstract or human sources too, as in 'idea generator' or 'job generator'. The pattern 'a generator of X' is more natural than 'a generator for X' in these abstract uses.
類義語
source (More general and less mechanical; often used for natural or abstract origins, not just active producers.) | producer (Very close in meaning but more common for physical goods, media, or natural processes.)
対義語
consumer (Opposite role in many contexts: a generator produces something, a consumer uses it.)
コロケーション
idea generator |revenue generator |job generator |content generator |noise generator |generator of interest
テーマ
business |general |technology |core_vocabulary
例文
  • Tourism is a major generator of income for the region.
  • The new app has been a powerful generator of customer data.
  • He is known as a generator of fresh ideas in the company.
  • This policy could be an important generator of new jobs.
  • The campaign was a big generator of online discussion.
学習者向け例文
  • The factory is a big generator of jobs.
  • His blog is a generator of new clients for his business.
  • This machine is a generator of heat and noise.
  • The event was a strong generator of public interest.
名詞 technical B2 entity
3

software that automatically creates output

A computer program or part of a program that makes code, text, images, numbers, or other data by itself when you give it some information.

用法パターン: [a] generator for [type of output]
よくある間違い:
Learners sometimes think a 'generator' in computing always relates to electricity. In technical and programming contexts, it usually means a software tool that produces something automatically, such as code, text, or random numbers. Also, some languages have a specific feature called a 'generator' function; this is a specialized use of the same core idea: something that produces values one by one.
類義語
tool (Very general; can be any utility, not necessarily one that automatically creates output.) | engine (In software, often similar, but can emphasize the core processing part, not just automatic generation.)
対義語
editor (Contrasts manual creation (editing by hand) with automatic creation by a generator.)
コロケーション
static site generator |code generator |image generator |template generator |password generator |random number generator
テーマ
technology |computing |work
例文
  • We used a static site generator to build the company website.
  • The code generator produces all the boilerplate classes for us.
  • This image generator can create realistic photos from text prompts.
  • A random number generator is used to simulate different scenarios.
  • The report generator pulls data from several databases each night.
学習者向け例文
  • The website uses a static site generator.
  • Our team wrote a code generator for this project.
  • I used an online password generator to make a strong password.
  • The program has a report generator for managers.
名詞 technical C2 entity
4

element that generates a structure

In higher mathematics, a number or object that can be used, together with some rules, to make every other member of a group or similar structure.

用法パターン: a generator of [a group / module / ideal]
よくある間違い:
Learners may try to apply the everyday meaning of 'generator' too literally here. In mathematics, a generator does not produce physical things; it is an abstract element that, under the given operations, can be used to obtain every element of a structure. Also, 'generator' is different from 'base' or 'basis', which have more specific conditions.
類義語
basis (Related but not identical; a basis is a minimal generating set with extra properties, often in vector spaces.)
対義語
identity element (Not a true antonym, but contrasts a neutral element with a generator that produces the whole structure.)
コロケーション
generator of a group |set of generators |cyclic generator |generator of an ideal |topological generator |group generator
テーマ
mathematics |science |education
例文
  • The element g is a generator of the cyclic group G.
  • We can choose a smaller set of generators for this module.
  • Every finite cyclic group has at least one generator.
  • They proved that the function acts as a topological generator of the space.
  • Finding a simple generator of this ideal is not straightforward.
学習者向け例文
  • In this example, 1 is a generator of the group of integers under addition.
  • The teacher showed how one generator can create all elements of the group.
  • We looked for a new set of generators for the vector space.
  • A generator of a group can make every element using the group operation.
文法
辞書形
generator
IPA
GB/d͡ʒˈɛnɚˌeɪtɚ/
US/d͡ʒˈɛnɚˌeɪtɚ/
音節・強勢
gen - er - at - or (4音節)
Stress on 1st syllable (gen)
活用形
Noun
  • Base: generator
  • Plural: generators
関連語
Forms
generators noun
Core family
generate verb A1 generation noun B1
Related words
generative adjective C1 generational adjective B2
Advanced or less common
regenerate verb regeneration noun B2
表現

code generator

1
/kˈoʊd d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase technical

tool that automatically writes code

A computer program that writes parts of the source code for you.

例文
  • The framework includes a code generator for common modules.
  • Using a code generator saves time on repetitive tasks.
  • They built a custom code generator for their API layer.

diesel generator

1
/dˈizəl d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase

generator driven by diesel engine

A generator that uses a diesel engine to make electricity.

例文
  • The factory runs a large diesel generator during peak hours.
  • They installed a diesel generator as a reliable backup power source.
  • Noise from the diesel generator could be heard across the village.

electric generator

1
/ɪlˈɛktɹɪk d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase technical

device converting motion to electricity

A machine that changes movement or mechanical power into electricity.

例文
  • The wind turbine drives an electric generator at its base.
  • An electric generator transforms the engine's rotation into electrical power.
  • Large electric generators are used in power plants.

emergency generator

1
/ɪmˈɚd͡ʒənsi d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase

generator used in emergencies

A generator that gives electricity only during emergencies, such as fires or big power cuts.

例文
  • The emergency generator kept the operating room lights on.
  • All high-rise buildings must have an emergency generator by law.
  • When the storm hit, the emergency generator came online.

portable generator

1
/pˈɔɹtəbəl d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase

movable generator for temporary power

A small generator that you can move easily and use in many places.

例文
  • They brought a portable generator to power the music at the outdoor party.
  • Campers often carry a portable generator for lights and cooking.
  • The crew used a portable generator at the remote filming location.

random number generator

1
/ɹˈændəm nˈʌmbɚ d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase technical

tool that produces unpredictable numbers

A program or device that makes numbers that no one can guess in advance.

例文
  • The lottery uses a random number generator to pick the winning numbers.
  • In simulations, a random number generator is used to model uncertainty.
  • Most programming languages include a built-in random number generator.

revenue generator

1
/ɹˈɛvənjˌu d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase

activity or product that earns money

Something in a company, like a product or service, that brings in money.

例文
  • The new subscription service has become a major revenue generator.
  • Tourism is an important revenue generator for the city.
  • They need a stronger revenue generator to support their free app.

static site generator

1
/stˈætɪk sˈaɪt d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase technical

tool that builds static websites

A program that takes text and templates and makes simple, fast web pages that do not change on the server.

例文
  • They rebuilt their blog using a static site generator.
  • A static site generator can make your website faster and more secure.
  • Developers often choose a static site generator for documentation sites.

steam generator

1
/stˈim d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase technical

device that produces steam

A machine that heats water to make steam.

例文
  • The power plant uses a steam generator connected to a turbine.
  • A small steam generator supplies heat for the building.
  • Engineers inspected the steam generator for leaks.

backup generator

3
/bˈækˌʌp d͡ʒˈɛnɚˌeɪtɚ/
fixed phrase

Spare power generator for outages

A machine that makes electricity when the main power stops working.

例文
  • The hospital uses a backup generator during blackouts.
  • The hospital's backup generator started automatically during the blackout.
  • We installed a backup generator for emergencies.
  • We installed a backup generator to protect the servers from power cuts.
  • The school relies on a backup generator in the rainy season.

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