Pro

Pro

prep.
  1. A Latin preposition signifying for, before, forth.

Phrases & Compounds

Pro confesso
taken as confessed. The action of a court of equity on that portion of the pleading in a particular case which the pleading on the other side does not deny.
Pro rata
In proportion; proportion.
Pro re nata
for the existing occasion; as matters are.

Pro

adv.
  1. For, on, or in behalf of, the affirmative side; -- in contrast with con.

Phrases & Compounds

Pro and con
for and against, on the affirmative and on the negative side; as, they debated the question pro and con; -- formerly used also as a verb.
Pros and cons
the arguments or reasons on either side.