What does the word pro mean?

Usage examples for pro

  1. She would remember higher reason, also, than the quid pro quo; she would try to be glad in this little special " gift of ministering"; but it puzzled her about the others. – We Girls: A Home Story by Mrs. A. D. T. Whitney
  2. Characteristically, Hazon proceeded to argue out the matter pro and con. – The Sign of the Spider by Bertram Mitford
  3. The newspapers of the city were pro- slavery, almost without exception. – Isaac T. Hopper by L. Maria Child