Meaning & use

emissions

noun·Academic

Last updated

UK/ɪˈmɪʃənz/
US/ɪˈmɪʃənz/

Meanings

  1. nounplural

    Gases or other substances released into the air, especially by vehicles, factories, or power plants.

    Grammar: Almost always used in the plural when talking about pollution; the singular 'emission' refers to a single release or to the act of releasing.

    Patterns

    • emissions from something
    • reduce emissions
    • carbon emissions

    The new law aims to cut emissions from cars and trucks.

    Factories must report their emissions to the government.

    Scientists warn that global emissions are still rising.

  2. noununcountabletechnical

    The act of sending out light, heat, sound, or gas.

    Grammar: Used as an uncountable noun when referring to the process: 'the emission of light'.

    Patterns

    • the emission of something

    The emission of harmful fumes from the plant was monitored closely.

    The device controls the emission of radiation.

Word forms

singularemission

Common combinations

carbon emissions
Many countries have pledged to reduce carbon emissions.
greenhouse gas emissions
Greenhouse gas emissions are a major cause of climate change.
reduce emissions
We need to reduce emissions to meet our climate goals.
cut emissions
The company plans to cut emissions by 50% over the next decade.
vehicle emissions
Vehicle emissions contribute to urban air pollution.

Synonyms and how they differ

discharge
More formal and often used for liquids or waste; 'emissions' is more common for gases and air pollution.
output
General term for what is produced; 'emissions' specifically refers to released gases or substances.

Word family

emit verb
To send out gas, heat, light, or sound.
emission noun
A single release or the act of releasing something.
emitter noun
A person, device, or country that emits something.

Commonly confused: emissions or emission?

emissions vs emission

Singular form; use 'emission' for one release or the process, and 'emissions' for the gases themselves, especially in environmental contexts.

Practice

The government has introduced new rules to limit ___ from factories.

Make it your own

Write a sentence using “emissions”, then check it and compare it with the examples above.

Your sentence stays on this page and is not sent anywhere.

Explore more words