grime

Grime is gross, greasy, ingrained dirt, like the grime on your neighbor's van that tempts you to write "Clean Me" in it with your finger.

You may find grime under your fingernails for days after your auto mechanics class, black oily dirt that requires a lot of scrubbing to remove. It's less common, but you can also use this word as a verb, meaning to make something this dirty: "They're going to grime the kitchen floor if they don't take their boots off!" The Germanic root of grime means "to smear."

Definitions of grime
1

n the state of being covered with unclean things

Synonyms:
dirt, filth, grease, grunge, soil, stain
Type of:
dirtiness, uncleanness
the state of being unsanitary

v make soiled, filthy, or dirty

Synonyms:
begrime, bemire, colly, dirty, soil
Antonyms:
clean, make clean
make clean by removing dirt, filth, or unwanted substances from
clean, clean house, houseclean
clean and tidy up the house
clean
be cleanable
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Types:
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foul
make unclean
contaminate, foul, pollute
make impure
smear
stain by smearing or daubing with a dirty substance
slime
cover or stain with slime
muddy, muddy up
dirty with mud
splash
soil or stain with a splashed liquid
mire, muck, muck up, mud
soil with mud, muck, or mire
crock
soil with or as with crock
blemish, spot
mar or impair with a flaw
infect, taint
contaminate with a disease or microorganism
moil
moisten or soil
besmirch, smirch
smear so as to make dirty or stained
Type of:
alter, change, modify
cause to change; make different; cause a transformation

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