WordWeb Online

1. (poetic, literary) quickly
    
2. With speed
   "he works apace";
   - quickly, rapidly, speedily, chop-chop [informal], in short order
    
3. [N. Amer] Alongside each other, facing in the same direction
   - abreast

1. Being up to particular standard or level especially in being up to date in knowledge
   "kept apace of the latest developments";
   - abreast, au courant, au fait, up on

See also: informed

Encyclopedia: Apace, Kidricevo