riffle vs ripple

riffle and ripple both are nouns.

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

As nouns, riffle and ripple are synonyms defined as:

Other synonyms of riffle include rippling, wavelet.

As verbs, riffle and ripple are synonyms defined as:

Other synonyms of riffle include cockle, ruffle, undulate.

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

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