|1.||[ verb ] spot, stain, or pollute|
|Synonyms:||befoul maculate foul|
"The townspeople defiled the river by emptying raw sewage into it"
|Related terms:||dishonor macule defiler befoulment|
|2.||[ verb ] make dirty or spotty, as by exposure to air, of metals; also used metaphorically|
|Synonyms:||tarnish stain sully maculate|
: "The silver was tarnished by the long exposure to the air" "Her reputation was sullied after the affair with a married man"
|Related terms:||spot darken blot macule tarnish|
|3.||[ verb ] place under suspicion or cast doubt upon|
|Synonyms:||corrupt taint cloud sully|
"sully someone's reputation"
|Related terms:||mar cloud|
|4.||[ noun ] (geography) a narrow pass (especially one between mountains)|