pro bono
adverb/ˌprəʊ ˈbəʊnəʊ/
/ˌprəʊ ˈbəʊnəʊ/
(from Latin)- (especially in the context of legal work) without asking for payment
- Ellis represented us pro bono.
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pro bono
Definition of pro bono adverb from the Oxford Advanced Learner's Dictionary