english
1
general::
Without charge, gratis, as in You can't expect the doctor to treat you for free. [Colloquial; c. 1900]
American Heritage Idioms
2
general::
Phrase(s): for free for no charge or cost; free of any cost. • They let us into the movie for free. • I will let you have a sample of the candy for free.
McGrawhill's American Idioms And Phrasal Verbs