► 動詞汚す  [よごす]    
meaning:  dirty  rank: 1☆ 
パンツの
裾を汚さないように
歩いた ⇨ I walked trying not to make the hem of my pants dirty
汚す  [けがす]  [liter]    
meaning:  dirty  rank: 3☆ 
彼は
家の
名を汚した ⇨ He sallied the family name  
(☛ Soil something intangible like honor, sanctity, etc.)More examples:- 彼の字は汚すぎて読めない ⇨ His letters are, handwriting is, so bad and cannot be read