Is RIDDLER a scrabble word?
Words With Friends : YES
Scrabble US : YES
Scrabble UK : YES
English International (SOWPODS) : YES
Scrabble Global : YES
Enable1 Dictionary : YES
Definitions for the word riddler
Etymology 1
From {{af, en, riddle, t1=to puzzle verbally, -er}}.Noun
RIDDLER (plural RIDDLERs)Etymology 2
From {{af, en, riddle, t1=to sieve, -er}}.Noun
RIDDLER (plural RIDDLERs)Source: English Wiktionary. Available under CC-BY-SA license.
The word RIDDLER is worth 9 points in Scrabble and 10 points in Words with Friends