clean meaning, definition, and synonyms

Clean is a very common English word with several meanings. It can describe something free from dirt, something morally or socially acceptable, a direct or skillful action, or the act of removing dirt or unwanted material.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.

Pronunciation

AI-generated pronunciation audio (OpenAI).

Accent: General American English

IPA: /kliːn/

Easy pronunciation: KLEEN (approximate spelling).

Stress: One syllable, stressed.

Adjective meaning free from dirt or impurities; not dirty.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.

Clean Meaning

not dirty; washed or tidy

Part of speech: adjective

Definition: free from dirt or impurities; not dirty

Example: Please keep your hands clean before dinner.

Synonyms for this meaning:

fresh — Can fit in some contexts, especially for water or air, but is not a full substitute for the everyday sense of not dirty.

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.

Other Meanings of Clean

Meaning 2

wash or remove dirt from something

Part of speech: verb

Definition: make clean by removing dirt, filth, or unwanted substances

Example: I need to clean the kitchen after dinner.

Synonyms for this meaning:

make clean — Direct synonym for the washing/removing dirt sense.
cleanse — Works better in formal or medical contexts than in everyday speech.

Meaning 3

clear and not limited

Part of speech: adjective

Definition: free from restrictions or qualifications

Example: The company gave him a clean bill of health.

Synonyms for this meaning:

clear — Works well in this sense.

Meaning 4

done smoothly and accurately

Part of speech: adjective

Definition: free from clumsiness; precisely or deftly executed

Example: She made a clean throw to first base.

Synonyms for this meaning:

neat — A good match for the precise, well-executed sense.

Meaning 5

needing little editing

Part of speech: adjective

Definition: (of a manuscript) having few alterations or corrections

Example: He turned in a clean manuscript.

Synonyms for this meaning:

fair — Used for a neatly copied or revised version, but less common today.

Meaning 6

causing little or no pollution

Part of speech: adjective

Definition: not spreading pollution or contamination

Example: The city is investing in cleaner buses.

Synonyms for this meaning:

uncontaminating — Matches the anti-pollution sense, but it is uncommon.

Meaning 7

completely

Part of speech: adverb

Definition: completely; used as an intensifier

Example: I clean forgot about the meeting.

Synonyms for this meaning:

plum — Dialectal or informal intensifier.
plumb — Strong adverbial intensifier in this sense.

Meaning 8

fair and sportsmanlike

Part of speech: adjective

Definition: exhibiting or calling for sportsmanship or fair play

Example: It was a clean fight with no cheating.

Synonyms for this meaning:

sporting — Fits the fair-play sense well.
sportsmanlike — Direct and natural in this sense.
sporty — Can mean sportsmanlike here, though it is less precise and more variable in modern usage.

Meaning 9

take out unwanted parts

Part of speech: verb

Definition: remove unwanted substances from, such as feathers or pits

Example: You need to clean the fish before cooking it.

Synonyms for this meaning:

pick — Can work for removing unwanted parts, but only in certain contexts.

Meaning 10

the weightlifting lift called the clean and jerk

Part of speech: noun

Definition: a weightlift in which the barbell is lifted to shoulder height and then jerked overhead

Example: He scored well on the clean and jerk.

Synonyms for this meaning:

clean and jerk — Name of the lift itself.

Meaning 11

not offensive or rude

Part of speech: adjective

Definition: (of behavior or especially language) free from objectionable elements; fit for all observers

Example: They told a clean joke at the party.

Synonyms for this meaning:

unobjectionable — A solid substitute in this sense.

Meaning 12

blank and unused

Part of speech: adjective

Definition: (of a surface) not written or printed on

Example: Write your answer on a clean page.

Synonyms for this meaning:

blank — Strong synonym for an unwritten surface.
white — Only works when the clean surface is specifically white.

Meaning 13

morally good and honest

Part of speech: adjective

Definition: morally pure

Example: She tried to live a clean life.

Synonyms for this meaning:

clean-living — Fits this moral sense directly.

Meaning 14

pure and not mixed with dirt or harmful matter

Part of speech: adjective

Definition: free from impurities

Example: We drank clean water from the spring.

Synonyms for this meaning:

fresh — Works in some contexts, especially for water, but is not always exact.

Meaning 15

clear and bright

Part of speech: adjective

Definition: (of sound or color) free from anything that dulls or dims

Example: The recording needs a cleaner bass sound.

Synonyms for this meaning:

clear — Good substitute for the sound/color sense.
light — Can fit color in some contexts, but is less precise.
unclouded — Works well for color or sound that is not dulled.

Meaning 16

tidy the house

Part of speech: verb

Definition: clean and tidy up the house

Example: She housecleans every Saturday.

Synonyms for this meaning:

clean house — Matches the home-cleaning sense.
houseclean — Direct verb for cleaning the house.

Meaning 17

not infected

Part of speech: adjective

Definition: free from sepsis or infection

Example: The doctor said the wound was clean.

Synonyms for this meaning:

uninfected — Direct synonym for this medical sense.

Meaning 18

take everything out; empty

Part of speech: verb

Definition: remove all contents or possession from, or empty completely

Example: The storm cleaned the trees of apples.

Synonyms for this meaning:

strip — Works for emptying or removing everything from something.

Meaning 19

fair and honest

Part of speech: adverb

Definition: in conformity with the rules or laws and without fraud or cheating

Example: They won the game clean.

Synonyms for this meaning:

fair — Fits the honest, rule-abiding sense.
fairly — Can work in some contexts, but it is less direct than fair.

Meaning 20

not using drugs

Part of speech: adjective

Definition: free of drugs

Example: He has been clean for five years.

Meaning 21

not armed with hidden weapons

Part of speech: adjective

Definition: not carrying concealed weapons

Example: Security checked that everyone was clean before entering.

Meaning 22

having a good record with no offenses

Part of speech: adjective

Definition: (of a record) having no marks of discredit or offense

Example: She has a clean driving record.

Meaning 23

take off shells or husks

Part of speech: verb

Definition: remove shells or husks from

Example: They cleaned the grain before milling it.

Meaning 24

take all of someone's money

Part of speech: verb

Definition: deprive wholly of money in a gambling game, robbery, etc.

Example: He got cleaned out at the casino.

Meaning 25

be able to be cleaned

Part of speech: verb

Definition: be cleanable

Example: This stove cleans easily.

Meaning 26

clean and careful about hygiene

Part of speech: adjective

Definition: free from dirt or impurities; or having clean habits

Example: Cats are naturally clean animals.

Meaning 27

ceremonially pure

Part of speech: adjective

Definition: ritually clean or pure

Example: The food must be clean according to ritual rules.

Meaning 28

complete and total

Part of speech: adjective

Definition: thorough and without qualification

Example: They made a clean break from the past.

Meaning 29

smooth and trouble-free

Part of speech: adjective

Definition: without difficulties or problems

Example: The test flight was clean from start to finish.

Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.

Clean Synonyms

Similar Meaning

fresh

make clean by removing dirt, filth, or unwanted substances

make clean
cleanse

free from restrictions or qualifications

clear

free from clumsiness; precisely or deftly executed

neat

(of a manuscript) having few alterations or corrections

fair

not spreading pollution or contamination

uncontaminating

completely; used as an intensifier

plum
plumb

exhibiting or calling for sportsmanship or fair play

sporting
sportsmanlike
sporty

remove unwanted substances from, such as feathers or pits

pick

a weightlift in which the barbell is lifted to shoulder height and then jerked overhead

clean and jerk

(of behavior or especially language) free from objectionable elements; fit for all observers

unobjectionable

(of a surface) not written or printed on

blank
white

morally pure

clean-living

free from impurities

fresh

(of sound or color) free from anything that dulls or dims

clear
light
unclouded

clean and tidy up the house

clean house
houseclean

free from sepsis or infection

uninfected

remove all contents or possession from, or empty completely

strip

in conformity with the rules or laws and without fraud or cheating

fair
fairly

Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.

Common Mistakes

Using clean for every meaning of purity or correctness without checking the sense.
Treating clean as always about dirt, when it can also mean fair, complete, or drug-free.
Using fresh as a full synonym in every context; it only fits some senses.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.

Frequently Asked Questions

What is the main meaning of clean?

The most common meaning is not dirty or free from dirt and impurities.

What are common synonyms for clean?

For the everyday adjective sense, the closest practical synonym is often fresh in limited contexts, but clean usually has no perfect one-word substitute. Other senses have their own synonyms, such as clear, neat, and spotless-like ideas depending on the meaning.

Is clean only an adjective?

No. Clean can also be a verb, an adverb, and a noun, depending on the sense.

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.