Definition of soil verb from the Oxford Advanced American Dictionary

     

    soil

     verb
    verb
    NAmE//sɔɪl//
     
    [often passive]something(formal)Verb Forms present simple I / you / we / they soil
     
    he / she / it soils
     
    past simple soiled
     
    -ing form soiling
     
     
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  1. 1to make something dirty soiled linen
  2. 2(figurative) I don't want you soiling your hands with this sort of work (= doing something unpleasant or wrong). synonyms at dirty
  3. Thesaurusdirtydusty filthy muddy soiled grubby stainedThese words all describe someone or something that is not clean.dirty not clean; covered with dust, soil, mud, oil, etc:Put your dirty clothes in the hamper.dusty full of dust; covered with dust:shelves full of dusty booksfilthy very dirty and unpleasant:It's absolutely filthy in here.muddy full of or covered in mud:Don't you come in here with those muddy boots on!soiled (somewhat formal) dirty, especially with waste from the body:soiled diapersgrubby (somewhat informal) somewhat dirty, usually because it has not been washed:He hoped she wouldn't notice his grubby fingernails.stained (often in compounds) covered with stains; marked with a stain (= a dirty mark that is difficult to remove):a pair of paint-stained jeansPatterns dirty/dusty/filthy/muddy/soiled/grubby/stained clothes dirty/dusty/filthy/grubby hands a dirty/dusty/filthy room to get dirty/dusty/filthy/muddy/stained
See the Oxford Advanced Learner's Dictionary entry: soil