dirty(v = verb.contact) begrime, bemire, colly, grime, soil - make soiled, filthy, or dirty; "don't soil your clothes when you play outside!"
is one way to alter, change, modify
Antonym: clean
Derived form noun dirtying₁
Sample sentences: Somebody ----s something; Something ----s something

1.  dirty(a = adj.all) soiled, unclean - soiled or likely to soil with dirt or grime; "dirty unswept sidewalks"; "a child in dirty overalls"; "dirty slums"; "piles of dirty dishes"; "put his dirty feet on the clean sheet"; "wore an unclean shirt"; "mining is a dirty job"; "Cinderella did the dirty work while her sisters preened themselves"
Antonym: clean
Derived forms noun dirt₂, noun dirtiness₁

2.  dirty(a = adj.all) Array - (of behavior or especially language) characterized by obscenity or indecency; "dirty words"; "a dirty old man"; "dirty books and movies"; "boys telling dirty jokes"; "has a dirty mouth"
Antonym: clean
Derived form noun dirtiness₃

3.  dirty(s = adj.all) filthy, lousy - vile; despicable; "a dirty (or lousy) trick"; "a filthy traitor"

4.  dirty(a = adj.all) contaminating - spreading pollution or contamination; especially radioactive contamination; "the air near the foundry was always dirty"; "a dirty bomb releases enormous amounts of long-lived radioactive fallout"
Antonym: clean
Derived forms noun dirt₂, noun dirtiness₂

5.  dirty(s = adj.all) pestiferous - contaminated with infecting organisms; "dirty wounds"; "obliged to go into infected rooms"
Derived form noun dirtiness₁

6.  dirty(s = adj.all) dingy, muddied, muddy - (of color) discolored by impurities; not bright and clear; "dirty"; "a dirty (or dingy) white"; "the muddied grey of the sea"; "muddy colors"; "dirty-green walls"; "dirty-blonde hair"

7.  dirty(s = adj.all) foul, marked-up - (of a manuscript) defaced with changes; "foul (or dirty) copy"

8.  dirty(s = adj.all) ill-gotten - obtained illegally or by improper means; "dirty money"; "ill-gotten gains"

9.  dirty(s = adj.all) Array - expressing or revealing hostility or dislike; "dirty looks"

10.  dirty(s = adj.all) cheating, foul, unsporting, unsportsmanlike - violating accepted standards or rules; "a dirty fighter"; "used foul means to gain power"; "a nasty unsporting serve"; "fined for unsportsmanlike behavior"

11.  dirty(s = adj.all) sordid - unethical or dishonest; "dirty police officers"; "a sordid political campaign"

12.  dirty(s = adj.all) Array - unpleasantly stormy; "there's dirty weather in the offing"

dirty, adj., adv., & v.
--adj. (dirtier, dirtiest)
1 soiled, unclean.
2 causing one to become dirty (a dirty job).
3 sordid, lewd; morally illicit or questionable (dirty joke).
4 unpleasant, nasty.
5 dishonest, dishonourable, unfair (dirty play).
6 (of weather) rough, squally.
7 (of a colour) not pure or clear, dingy.
8 colloq. (of a nuclear weapon) producing considerable radioactive fallout.
--adv. sl. (with adjectives expressing magnitude) very (a dirty great diamond).
--v.tr. & intr. (-ies, -ied) make or become dirty.

Idiom:
dirty dog colloq. a scoundrel; a despicable person. the dirty end of the stick colloq. the difficult or unpleasant part of an undertaking, situation, etc. dirty linen (or washing) colloq. intimate secrets, esp. of a scandalous nature. dirty look colloq. a look of disapproval, anger, or disgust. dirty money extra money paid to those who handle dirty materials. dirty trick
1 a dishonourable and deceitful act.
2 (in pl.) underhand political activity, esp. to discredit an opponent. dirty weekend colloq. a weekend spent clandestinely with a lover.
dirty word
1 an offensive or indecent word.
2 a word for something which is disapproved of (profit is a dirty word). dirty work dishonourable or illegal activity, esp. done clandestinely. do the dirty on colloq. play a mean trick on.

Derivative:
dirtily adv. dirtiness n.

VB  be unclean, become unclean, rot, putrefy, ferment, fester, rankle, reek, stink, mold, molder, go bad, render unclean, dirt, dirty, daub, blot, blur, smudge, smutch, soil, smoke, tarnish, slaver, spot, smear, smirch, begrease, dabble, drabble, draggle, daggle, spatter, slubber, besmear, bemire, beslime, begrime, befoul, splash, stain, distain, maculate, sully, pollute, defile, debase, contaminate, taint, leaven, corrupt, cover with dust, drabble in the mud, roil, wallow in the mire, slobber, slabber.

N  uncleanness, impurity, immundity, immundicity, impurity, defilement, contamination, defoedation, soilure, soiliness, abomination, leaven, taint, tainture, fetor, decay, putrescence, putrefaction, corruption, mold, must, mildew, dry rot, mucor, rubigo, slovenry, slovenliness, squalor, dowdy, drab, slut, malkin, slattern, sloven, slammerkin, slammock, slummock, scrub, draggle-tail, mudlark, dust-man, sweep, beast, dirt, filth, soil, slop, dust, cobweb, flue, smoke, soot, smudge, smut, grit, grime, raff, sossle, sozzle, sordes, dregs, grounds, lees, argol, sediment, settlement heeltap, dross, drossiness, mother, precipitate, scoriae, ashes, cinders, recrement, slag, scum, froth, hogwash, ditchwater, dishwater, bilgewater, rinsings, cheeseparings, sweepings, offscourings, outscourings, off scum, caput mortuum, residuum, sprue, fecula, clinker, draff, scurf, scurfiness, exuviae, morphea, fur, furfur, dandruff, tartar, riffraff, vermin, louse, flea, bug, chinch, mud, mire, quagmire, alluvium, silt, sludge, slime, slush, slosh, sposh, spawn, offal, gurry, lientery, garbage, carrion, excreta, slough, peccant humor, pus, matter, suppuration, lienteria, faeces, feces, excrement, ordure, dung, crap, shit, sewage, sewerage, muck, coprolite, guano, manure, compost, dunghill, colluvies, mixen, midden, bog, laystall, sink, privy, jakes, toilet, john, head, cess, cesspool, sump, sough, cloaca, latrines, drain, sewer, common sewer, Cloacina, dust hole, sty, pigsty, lair, den, Augean stable, sink of corruption, slum, rookery, dirty, filthy, grimy, unclean, impure, soiled, not to be handled with kid gloves, dusty, snuffy, smutty, sooty, smoky, thick, turbid, dreggy, slimy, mussy, slovenly, untidy, messy, uncleanly, unkempt, sluttish, dowdy, draggle-tailed, uncombed, unscoured, unswept, unwiped, unwashed, unstrained, unpurified, squalid, lutose, slammocky, slummocky, sozzly, nasty, coarse, foul, offensive, abominable, beastly, reeky, reechy, fetid, decayed, moldy, musty, mildewed, rusty, moth-eaten, mucid, rancid, weak, bad, gone bad, etercoral, lentiginous, touched, fusty, effete, reasty, rotten, corrupt, tainted, high, flyblown, maggoty, putrid, putrefactive, putrescent, putrefied, saprogenic, saprogenous, purulent, carious, peccant, fecal, feculent, stercoraceous, excrementitious, scurfy, scurvy, impetiginous, gory, bloody, rotting, rotten as a pear, rotten as cheese, crapulous, gross, fimetarious, fimicolous, they that touch pitch will be defiled.

N  disrepute, discredit, ill repute, bad repute, bad name, bad odor, bad favor, ill name, ill odor, ill favor, disapprobation, ingloriousness, derogation, abasement, debasement, abjectness, degradation, dedecoration, a long farewell to all my greatness, odium, obloquy, opprobrium, ignominy, dishonor, disgrace, shame, humiliation, scandal, baseness, vileness, turpitude, infamy, tarnish, taint, defilement, pollution, stain, blot, spot, blur, stigma, brand, reproach, imputation, slur, crying shame, burning shame, scandalum magnatum, badge of infamy, blot in one's escutcheon, bend sinister, bar sinister, champain, point champain, byword of reproach, Ichabod, argumentum ad verecundiam, sense of shame, disgraced, blown upon, shorn of its beams, shorn of one's glory, overcome, downtrodden, loaded with shame, in bad repute, out of repute, out of favor, out of fashion, out of countenance, at a discount, under a cloud, under an eclipse, unable to show one's face, in the shade, in the background, out at elbows, down at the elbows, down in the world, inglorious, nameless, renownless, obscure, unknown to fame, unnoticed, unnoted, unhonored, unglorified, shameful, disgraceful, discreditable, disreputable, despicable, questionable, unbecoming, unworthy, derogatory, degrading, humiliating, infra dignitatem, dedecorous, scandalous, infamous, too bad, unmentionable, ribald, opprobrious, errant, shocking, outrageous, notorious, ignominious, scrubby, dirty, abject, vile, beggarly, pitiful, low, mean, shabby base, to one's shame be it spoken, Int, fie!, shame!, for shame!, proh pudor!, O tempora!, O mores!, ough!, sic transit gloria mundi!.

N  improbity, dishonesty, dishonor, deviation from rectitude, disgrace, fraud, lying, bad faith, Punic faith, mala fides, Punica fides, infidelity, faithlessness, Judas kiss, betrayal, breach of promise, breach of trust, breach of faith, prodition, disloyalty, treason, high treason, apostasy, nonobservance, shabbiness, villainy, villany, baseness, abjection, debasement, turpitude, moral turpitude, laxity, trimming, shuffling, perfidy, perfidiousness, treachery, double dealing, unfairness, knavery, roguery, rascality, foul play, jobbing, jobbery, graft, bribery, venality, nepotism, corruption, job, shuffle, fishy transaction, barratry, sharp practice, heads I win tails you lose, mouth honor, dishonest, dishonorable, unconscientious, unscrupulous, fraudulent, knavish, disgraceful, wicked, false-hearted, disingenuous, unfair, one-sided, double, double- hearted, double-tongued, double-faced, timeserving, crooked, tortuous, insidious, Machiavelian, dark, slippery, fishy, perfidious, treacherous, perjured, infamous, arrant, foul, base, vile, ignominious, blackguard, contemptible, unrespectable, abject, mean, shabby, little, paltry, dirty, scurvy, scabby, sneaking, groveling, scrubby, rascally, pettifogging, beneath one, low-minded, low-thoughted, base-minded, undignified, indign, unbecoming, unbeseeming, unbefitting, derogatory, degrading, infra dignitatem, beneath one's dignity, ungentlemanly, ungentlemanlike, unknightly, unchivalric, unmanly, unhandsome, recreant, inglorious, corrupt, venal, debased, mongrel, faithless, of bad faith, false, unfaithful, disloyal, untrustworthy, trustless, trothless, lost to shame, dead to honor, barratrous, dishonestly, mala fide, like a thief in the night, by crooked paths, Int, O tempora!, O mores!, corruptissima respublica plurimae leges.

N  dimness, darkness, paleness, half light, demi-jour, partial shadow, partial eclipse, shadow of a shade, glimmer, gliming, nebulosity, cloud, eclipse, aurora, dusk, twilight, shades of evening, crepuscule, cockshut time, break of day, daybreak, dawn, moonlight, moonbeam, moonglade, moonshine, starlight, owl's light, candlelight, rushlight, firelight, farthing candle, dim, dull, lackluster, dingy, darkish, shorn of its beams, dark, faint, shadowed forth, glassy, cloudy, misty, blear, muggy, fuliginous, nebulous, nebular, obnubilated, overcast, crepuscular, muddy, lurid, leaden, dun, dirty, looming, pale, confused.

N  opacity, opaqueness, film, cloud, opaque, impervious to light, adiaphanous, dim, turbid, thick, muddy, opacous, obfuscated, fuliginous, cloud, hazy, misty, foggy, vaporous, nubiferous, muggy, smoky, fumid, murky, dirty.

N  turbidity, cloudiness, fog, haze, muddiness, haziness, obscurity, nephelometer, turbid, thick, muddy, obfuscated, fuliginous, hazy, misty, foggy, vaporous, nubiferous, cloudy (cloud), smoky, fumid, murky, dirty.

dirty bomb, dirty dog, dirty joke, dirty language, dirty laundry, dirty linen, dirty money, dirty old man, dirty pool, dirty story, dirty trick, dirty tricks, dirty war, dirty word, dirty work