ripples

ripples is a valid word in Scrabble and Words With Friends. It has 7 letters and scores 11 points before any board bonuses (r 1 + i 1 + p 3 + p 3 + l 1 + e 1 + s 1).

It is an anagram of 2 other words: slipper, lippers.

“RIPPLES” on Wiktionary