lessen What is the Definition of lessen?Verb:decrease in size, extent, or rangemake smallerwear off or die down Other meanings of lessen (synonyms, cognates). ENRU lessen уменьшать Frequently viewed: sin definitiondefinition of ballgreat meaningplay meaningdefinition of impressivedefinition of arisecapabilities definitionreordering meaninghurt meaningyear meaningdefinition of speedmistake definition A B C D E F G H I J K L M N O P Q R S T U V W X Y Z