ripple vs riffle

ripple and riffle both are nouns.

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

As nouns, ripple and riffle are synonyms defined as:

Other synonyms of ripple include rippling, wavelet.

As verbs, ripple and riffle are synonyms defined as:

Other synonyms of ripple include cockle, ruffle, undulate.

ripple (noun)	riffle (noun)
a small wave on the surface of a liquid	shuffling by splitting the pack and interweaving the two halves at their corners
(electronics) an oscillation of small amplitude imposed on top of a steady value	a small wave on the surface of a liquid

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