Behind/bɪˈhaɪnd/ Definition 1 of 4Pro Tip 1/3Physical Position Used to describe something or someone located at the back. The restroom is behind the staircase. Pro Tip 2/3Support Roles Refers to people or things playing a secondary role in a situation. He always worked behind the scenes in theater productions. Pro Tip 3/3Concealment Suggests hiding or being obscured by something else. The sun was hidden behind the clouds.