She has the 'sole' authority to hire new staff members. [=only she can hire new staff members]
The 'sole' aim/objective/purpose of the program is to help the poor.
Icy roads were the 'sole' cause of the accident.
(..) this morning. She and Koothrappali emerge from your bedroom. She is disheveled, and Raj is dressed only in a sheet. The sole clue: "It's not what it looks like." Just let it go, Sheldon. If I could, I would, but I can't, so I shan't. Now, knowing Penny, (..)2011 TvShow: The Big Bang Theory Title: The Skank Reflex Analysis Season: 5 Episode 1