pro bono - definition and synonyms

adjective, adverb legal 

Your browser doesn’t support HTML5 audio

/prəʊ ˈbəʊnəʊ/
  1. done without the usual payment that a lawyer charges

    Thompson is well known among colleagues for his pro bono work in the field of criminal law.

    She decided to act pro bono in this litigation as it was a matter so close to her heart.

Word story
From the Latin expression pro bono publico, which means ’for the public good’.