Meaning ofgive backin English

Verb

1. to contribute to charity (in gratitude for success)
   The billionaire decided to give back to the community by donating to local charities.
2. to return something to its owner
   She will give back the book to its owner after she finishes reading it.
   Synonyms:

   returnrestorerelinquishyieldhand backsurrendergive updeliver backcederevert
   Antonyms:

   takekeepstealwithholdappropriate