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clean  audio  (kln) KEY 

ADJECTIVE:
clean·er, clean·est
  1. Free from dirt, stain, or impurities; unsoiled.
    1. Free from foreign matter or pollution; unadulterated: clean air; clean drinking water.
    2. Not infected: a clean wound.
    1. Producing relatively little pollution: a clean fuel; a cleaner, more efficient engine.
    2. Producing relatively little radioactive fallout or contamination: a clean nuclear bomb.
  2. Having no imperfections or blemishes; regular or even: a clean edge; a smooth, clean joint.
    1. Not ornate or intricate; spare: "the clean lines and exquisite proportions of early modernism" (Judith Thurman).
    2. Sharply defined; clear-cut: a clean outline against the sky.
  3. Free from clumsiness; deft; adroit: a clean throw.
  4. Devoid of restrictions or encumbrances: a clean bill of health.
  5. Thorough; complete: a clean getaway.
  6. Having few alterations or corrections; legible: clean manuscript.
  7. Blank: a clean page.
    1. Morally pure; virtuous: led a clean life.
    2. Having no marks of discredit or offense: a clean voting record.
  8. Fit for all readers, listeners, or audiences; not ribald or obscene: a clean joke.
  9. Honest or fair: a clean fighter; a clean competition.
  10. Slang
    1. Not carrying concealed weapons or drugs.
    2. Innocent of a suspected crime.
  11. Informal
    1. Free from narcotics addiction.
    2. Showing no evidence of using banned or performance-enhancing substances: proven to be clean before the race.
ADVERB:
cleaner, cleanest
  1. So as to be unsoiled: wash the dishes clean.
  2. In a fair manner: played the game clean.
  3. In a clean or nonpolluting manner: a fuel that burns clean.
  4. Informal Entirely; wholly: clean forgot the appointment.
VERB:
cleaned, clean·ing, cleans
VERB:
tr.
  1. To rid of dirt, rubbish, or impurities: clean a room; clean a suit.
  2. To get rid of (impurities or dirt, for example); remove: cleaned up the trash; cleaned off the stains.
  3. To prepare (fowl or other food) for cooking, as by removing the entrails or fat.
  4. To remove the contents from; empty: cleaned my plate.
  5. Sports To lift (a barbell) from the floor to the shoulders in one motion.
VERB:
intr.
To undergo or perform an act of cleaning.

PHRASAL VERBS:
clean out
  1. To rid of dirt, rubbish, or impurities.
  2. To empty of contents or occupants.
  3. Informal To drive or force out: cleaned out the incompetent workers.
  4. Slang To deprive completely of money or material wealth: The robbery cleaned us out.
clean up
  1. To make clean or orderly.
  2. To make oneself clean, neat, or presentable.
  3. To dispose of; settle: cleaned up the unpaid bills.
  4. Slang To make a large profit, often in a short period of time: cleaned up during the bull market.

IDIOM:
clean house Slang
To eliminate or discard what is undesirable: The scandal forced the company to clean house.

ETYMOLOGY:
Middle English clene, from Old English clne

OTHER FORMS:
cleana·ble(Adjective), cleanness(Noun)

SYNONYMS:
clean, antiseptic, cleanly, immaculate, spotless

These adjectives mean free from dirt: clean clothing; antiseptic surgical instruments; a cleanly pet; an immaculate tablecloth; a spotless kitchen.
Antonym: dirty


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