turn over something, especially the pages of a book, quickly and casually

he riffled through the pages

she opened a book and riffled the pages

shuffle (playing cards) by flicking up and releasing the corners or sides of two piles of cards so that they intermingle and may be slid together to form a single pile

he riffled the deck of cards

an act or sound of riffling through something

just a riffle through the books

the loudest sound was the constant riffle of paper as people looked at the agendas

a rocky or shallow part of a stream or river where the water flows brokenly

the river's sweeping riffles and deep pools provide a superb habitat for salmon