名詞 riffle:

1. a small wave on the surface of a liquid
   同義詞：ripple, rippling, wavelet
2. shuffling by splitting the pack and interweaving the two halves at their corners

動詞 riffle:

1. twitch or flutter
   同義詞：flick, ruffle
2. look through a book or other written material
   同義詞：flick, flip, thumb, leaf, riff
3. stir up (water) so as to form ripples
   同義詞：ripple, ruffle, cockle, undulate
4. shuffle (playing cards) by separating the deck into two parts and riffling with the thumbs so the cards intermix

rif.fle

n.（名詞）

A rocky shoal or sandbar lying just below the surface of a waterway.
淺灘，沙洲：位于航道水面以下的巖石淺灘或沙洲
A stretch of choppy water caused by such a shoal or sandbar; a rapid.
湍流，急流：由這樣的淺灘或沙洲引起的波濤洶涌水流的延伸；急流

In mining, the sectional stone or wood bottom lining of a sluice, arranged for trapping mineral particles, as of gold.
礦石采集槽：在采礦中，用來分離金屬粒子、如金子的槽溝的斷面石頭或樹根隔離物
A groove or block in such a lining.
槽溝：在這種隔離物中的凹槽或支撐物
Games The act or an instance of shuffling cards.
【游戲】 洗牌：洗牌的動作或例子
v.（動詞）
rif.fled,rif.fling,rif.fles
v.tr.（及物動詞）
Games To shuffle (playing cards) by holding part of a deck in each hand and raising up the edges before releasing them to fall alternately in one stack.
【游戲】 洗（紙牌）：通過用每只手握一副牌的一部分并使邊緣翹起，在松開前使其交替地落成一堆來洗
To thumb through (the pages of a book, for example).
翻查（例如書頁）
v.intr.（不及物動詞）
Games To shuffle cards.
【游戲】 洗牌
To become choppy, as water.
使湍急：使變得波浪滔滔的，如水

來源：
Possibly blend of ripple
可能混合了 ripple
ruffle
ruffle