Phrase(s): by yourself
1. with no one else present; alone. • Do you want to sit here by yourself, or can I sit here too? • Don’t sit at home by yourself. Come to the movie with me. 2. with the help of no one else. • Can you really do all this cooking by yourself ? • Bill, can you lift this box by yourself ?
McGrawhill's American Idioms And Phrasal Verbs