Oral advocacy refers to the act of persuasively presenting an argument or point of view through spoken communication, usually in a formal setting such as a court, debate, or public speaking event. Full definition
Other skills include superior oral advocacy skills and excellent interpersonal skills. (baronandbudd.com)
The society is disappointed that the [panel] has failed to broaden the scheme rules to recognise that excellence is more than merely oral advocacy in the higher courts. (newlawjournal.co.uk)
-- that his career highlights the limitations of oral advocacy as an instrument of justice. (newlawjournal.co.uk)