NICHING is a playable word

niche Scrabble® Dictionary

verb
niched, niching, niches
to place in a receding space or hollow
20 Playable Words can be made from "NICHING"
   2-Letter Words (3 found)
   3-Letter Words (8 found)
   4-Letter Words (3 found)
   5-Letter Words (3 found)
   7-Letter Words (3 found)