pro 1
/proh/ , adv., n., pl. pros .
adv.
1. in favor of a proposition, opinion, etc.
n.
2. a proponent of an issue; a person who upholds the affirmative in a debate.
3. an argument, consideration, vote, etc., for something. Cf. con 1 .
[ 1350-1400; ME pro (prep) in favor of, FOR; akin to PER-, Gk pró, Skt pra ]
pro 2
/proh/ , adj., n., pl. pros . Informal.
adj.
1. professional.
n.
2. professional.
3. the pros , the professional athletic leagues, as of football, baseball, or basketball: He's sure to be signed by the pros.
[ 1840-50; shortened form ]
pro 3
/proh/ , n. , pl. pros . Slang.
prophylactic (def. 5).
[ shortened form ]
/prddoh/ ; Eng. /proh/ , prep. Latin.
for.