WordWeb Online

1. The cutting of spiral grooves on the inside of the barrel of a firearm
   - grooving

1. Steal goods; take as spoils
   "During the earthquake people rifled the stores that were deserted by their owners";
   - plunder, despoil, loot, reave [archaic], strip, ransack, pillage, foray
    
2. Go through in search of something; search through someone's belongings in an unauthorized way
   "Who rifled through my desk drawers?";
   - go

Derived forms: riflings

Type of: formation, search, shaping, take

Encyclopedia: Rifling