1) Cologne compass point 2) Contribute to a blog 3) Direction from Aachen to Bonn 4) Direction in Bonn 5) Düsseldorf direction 6) East German 7) East in austria 8) East in Germany 9) East of berlin 10) East of essen 11) East of Germany 12) East, to Bach 13) East, to East Germans 14) East, to Ernst 
• (n.) See Oast.
Original soundtrack
Original Sound Track; the background music of an anime production, including all songs.
stands for Original Sound Track. An OST is a music CD including all of the major background music and songs from a given anime series.
Ostia (Port of Rome)
On Second Thought
Office of Science and Technology
Ost noun See Oast . 
original soundtrack 
Original Soundtrack.
acronym: Office of Science and Technology
Officer Safety Training
The Scandinavian word for cheese.