debase in WordNet English dictionary

1. corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones
   "adulterate liquor"
   load  adulterate  stretch  dilute  debase 
   
2. lower in value by increasing the base-metal content
   debase  alloy 
   
3. corrupt morally or by intemperance or sensuality
   "debauch the young people with wine and women"; "Socrates was accused of corrupting young men"; "Do school counselors subvert young children?"; "corrupt the morals"
   corrupt  pervert  subvert  demoralize  demoralise  debauch  debase  profane  vitiate  deprave  misdirect