This book is only a novel in the 'loose' sense of the word. [=the word “novel” does not usually refer to a book like this; many people would not consider the book a novel]
Ten advocacy groups from all parts of the country formed a 'loose' alliance/association/coalition to present their shared interests to Congress.
She's been 'cut loose' from her contract. [=the company/organization with whom she had a contract to work has ended the contract]
(..) as you did to the jail. So I see I shall have to marry you. I never heard of such bad taste. Would you be more convinced if I fell to my knees? Turn me loose, you varmint, and get out of here! Forgive me for startling you with the impetuosity of my sentiments... ...my dear Scarlett. (..)1939 Gone with the Wind
(..) I'll tell Prissy to get an extra plate.... Ashley! Ashley! Darling! Miss Scarlett! Don't spoil it, Miss Scarlett. Turn me loose, you fool! Turn me loose, it's Ashley! He's her husband, ain't he? -Miss Scarlett, ma'am. -High time you got back. -Did you get the horse shod? (..)1939 Gone with the Wind