Wordnet 3.0
VERB (1)
1. 
 fire as from a gun; 
- Example: "The soldiers let drive their bullets"[syn: loose off, let fly, let drive]
WordNet (r) 3.0 (2006):
loose off
    v 1: fire as from a gun; "The soldiers let drive their bullets"
         [syn: loose off, let fly, let drive]