As a Noun: 1. Something that is added to something else in order to make it look more attractive. English = decoration, decorations. 2. Ribbons, balloons and other brightly colored objects hung around a room to make it look more attractive as part of a celebration. English = decorations. As a Verb or Adjective: 1. To add something to something else in order to make it look more attractive. English = decorate. 2. To hang ribbons, balloons and other brightly colored objects around a room or object to make it look more attractive as part of a celebration. English = decorate.