TITTERING is a playable word

titter Scrabble® Dictionary

verb
tittered, tittering, titters
to utter a restrained, nervous laugh
90 Playable Words can be made from "TITTERING"
   2-Letter Words (10 found)
   3-Letter Words (23 found)
   6-Letter Words (10 found)
   7-Letter Words (6 found)
   9-Letter Words (1 found)