As a Noun: 1. A thing which is placed underneath something else that helps to hold it up and stop it falling over. English = support. 2. The layers of bricks or concrete below the ground or on the ground that a building or other structure is built on. English = foundations. As a Verb or Adjective: 1. Of an object, to be underneath another object and to help hold it up so that it does not fall over. English = support.