riffle vs cards

riffle and cards both are nouns.

Word	Noun	Adjective	Verb	Adverb
riffle	Yes	No	Yes	No
cards	Yes	No	No	No

riffle (noun)	cards (noun)
shuffling by splitting the pack and interweaving the two halves at their corners	a game played with playing cards
a small wave on the surface of a liquid

riffle (verb)	cards (verb)
shuffle (playing cards) by separating the deck into two parts and riffling with the thumbs so the cards intermix
twitch or flutter
stir up (water) so as to form ripples
look through a book or other written material