Exhaust meaning, definition, and synonyms

Exhaust is a word with several related meanings. It can mean to use something up, to make someone feel extremely tired, or to remove gases or other substances. As a noun, it refers to waste fumes from an engine or the engine system that carries them away.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-02. AI assessment; not a guarantee of accuracy.

Pronunciation

AI-generated pronunciation audio (OpenAI).

Accent: General American English

IPA: /ɪɡˈzɔst/

Easy pronunciation: ig-ZAWST (approximate spelling).

Stress: Stress the second syllable.

Verb in the sense of use up completely.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-02. AI assessment; not a guarantee of accuracy.

Exhaust Meaning

to spend or consume all of something

Part of speech: verb

Definition: use up completely

Example: We exhausted our savings.

Synonyms for this meaning:

consume — Works when something is used up or consumed.
deplete — A strong match for reducing supplies or resources to nothing or nearly nothing.
eat up — Natural in everyday English for using up resources.
run through — Used for spending or using a supply quickly.
use up — Direct and common substitute in this sense.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-02. AI assessment; not a guarantee of accuracy.

Other Meanings of Exhaust

Meaning 2

to make someone or something extremely tired

Part of speech: verb

Definition: wear out completely

Example: This kind of work exhausts me.

Synonyms for this meaning:

beat — Informal; can mean to make very tired.
tucker out — Common informal synonym meaning to tire completely.
tire — A close general substitute in this sense.

Meaning 3

to send out or remove gas, air, or waste matter

Part of speech: verb

Definition: eliminate or discharge a substance

Example: The engine exhausts combustion gases through the pipe.

Synonyms for this meaning:

discharge — Matches the technical sense of sending something out.
eject — Works when something is forced out.
expel — Suitable in technical or formal usage.
release — Can work in this sense, though it is broader and less specific.

Meaning 4

gases that come out of an engine

Part of speech: noun

Definition: the waste gases from an engine

Example: The car’s exhaust was blowing smoke.

Synonyms for this meaning:

exhaust fumes — Common phrase for the gases coming from an engine.
fumes — Related, but broader and less specific.

Meaning 5

the part of an engine that removes burned gases

Part of speech: noun

Definition: the system that carries exhaust gases away from an engine

Example: The mechanic inspected the exhaust system.

Synonyms for this meaning:

exhaust system — Direct synonym for this engine part.

Meaning 6

to reduce something until very little is left

Part of speech: verb

Definition: deplete or drain away

Example: The long campaign exhausted their money and energy.

Synonyms for this meaning:

play out — Can fit when a supply or resource is used up.
run down — Can mean to reduce a supply or amount.
sap — Works when something gradually drains strength, energy, or resources.
tire — Related, but more often refers to making someone feel tired.

Meaning 7

to consume every bit of a supply

Part of speech: verb

Definition: use up the whole supply of

Example: We have exhausted the food supplies.

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-11-02. AI assessment; not a guarantee of accuracy.

Exhaust Synonyms

Similar Meaning

consume
deplete
eat up
run through
use up

wear out completely

beat
tucker out
tire

eliminate or discharge a substance

discharge
eject
expel
release

the waste gases from an engine

exhaust fumes
fumes

the system that carries exhaust gases away from an engine

exhaust system

deplete or drain away

play out
run down
sap
tire

Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-11-02. AI assessment; not a guarantee of accuracy.

Common Mistakes

Confusing the verb exhaust meaning 'use up' with the noun exhaust meaning 'engine fumes' or 'engine system'.
Using exhaust to mean 'destroy' instead of 'use up' or 'make very tired'.
Treating tucker as a standard synonym in formal writing; the usual phrase is tucker out.

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-11-02. AI assessment; not a guarantee of accuracy.

Frequently Asked Questions

What does exhaust mean in everyday English?

In everyday English, exhaust usually means to use something up completely or to make someone extremely tired.

Is exhaust a noun or a verb?

It can be both. As a verb, it means to use up, tire out, or discharge something. As a noun, it means engine fumes or the system that carries those fumes away.

What is a simple synonym for exhaust?

For the most common meaning, use up is the simplest synonym.

Does exhaust always mean 'tired'?

No. It can also mean to use up resources or to discharge gases from an engine.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-02. AI assessment; not a guarantee of accuracy.