1. 
   MSTA
   Series of 152mm guns [SU;RU]
   Found op http://www.jedsite.info/index.html
   
   
2. 
   Msta
   Msta (umstä') , river, c.280 mi (450 km) long, rising N of Vyshne Volochek, NW European Russia, and flowing generally NW into Lake Ilmen near Novgorod. Navigable in its lower course, it is included in the Vyshnevolotsk canal system.
   Found op http://www.infoplease.com/ce6/world/A0834310.html
   
   
3. 
   msta
   1) Series of 152mm guns
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/msta/1
   
   

Tip: double click on a word to show its meaning.