1
general::
Phrase(s): by themselves
1. with help from no one else. • Do you think they can do it by themselves? • Mike and Max cannot lift the piano by themselves. 2. with no one else present; alone (of two or more people). • They are sitting there by themselves. Let’s sit with them. • They enjoy spending the evening at home by themselves.
McGrawhill's American Idioms And Phrasal Verbs