pro bo ‧ no /ˌprəʊ ˈbəʊnəʊ $ ˌproʊ ˈboʊnoʊ/ BrE AmE adjective , adverb
[ Date: 1900-2000 ; Language: Latin ; Origin: pro bono publico 'for the public good' ]
used to describe work that someone, especially a lawyer, does without getting paid
pro bo ‧ no /ˌprəʊ ˈbəʊnəʊ $ ˌproʊ ˈboʊnoʊ/ BrE AmE adjective , adverb
[ Date: 1900-2000 ; Language: Latin ; Origin: pro bono publico 'for the public good' ]
used to describe work that someone, especially a lawyer, does without getting paid
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012