1. 
   Overwatch
   In modern warfare, overwatch is the state of one small unit or military vehicle supporting another unit, while they are executing fire and movement tactics. An overwatching, or supporting unit has taken a position where it can observe the terrain ahead, especially likely enemy positions. This allow...
   Found op http://en.wikipedia.org/wiki/Overwatch
   
   
2. 
   Overwatch
   O'ver·watch' transitive verb 1. To watch too much. 2. To weary or exhaust by watching. Dryden.
   Found op http://www.encyclo.co.uk/webster/O/59
   
   
3. 
   Overwatch
   • (v. t.) To watch too much. • (v. t.) To weary or exhaust by watching.
   Found op http://thinkexist.com/dictionary/meaning/overwatch/
   
   

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