A shouldered firearm with a long, rifled barrel to improve range and accuracy.
(usually plural) A rifleman.
verb
To quickly search through many items (such as papers, the contents of a drawer, a pile of clothing). (See also rifflehttp//verbmall.blogspot.com/2008/05/riffle-or-rifle.html)
“She made a mess when she rifled through the stack of papers, looking for the title document.”