HALLOING is a playable word

hallo Scrabble® Dictionary

verb
halloed, halloing, hallos or halloes
to shout
110 Playable Words can be made from "HALLOING"
   2-Letter Words (19 found)
   3-Letter Words (28 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)
   8-Letter Words (2 found)