When the new law was proposed, we began hearing arguments from both the 'pros' and the cons. [=from the people who supported it and the people who opposed it]
Congress weighed the 'pros and cons' of the new tax plan. [=the arguments for and against the new tax plan]
The governor has taken a 'pro-choice' position. = The governor is 'pro-choice'.
(..) I'm not sure yet, actually. I just graduated last spring. What did you study? Philosophy. Yeah, there's a good buck in that racket. Yeah. Well, so far it's pro bono. Well, I'm sure you'll figure out the angles. Yeah. I hope your Porsche works out. Cheers to that, huh? Cheers to that. Kanpai. (..)2003 Lost in Translation