Several soldiers were killed by 'friendly fire'. [=they were accidentally killed by weapons fired from their own side]
environmentally 'friendly' products = eco-'friendly' products [=products that do not harm the environment]
They are 'friendly with' their new neighbors. [=they are friends with their new neighbors]
(..) automatically prompts the desk clerk to greet me with this exact statement. Pleasure to see you again, Mr. Bingham. It's these kinds of systemized, friendly touches that keep my world in orbit. All the things you probably hate about traveling, the recycled air, the artificial lighting, (..)2009 Up in the Air