Making a Low-Pitched Monotone Sound
This page is the CodyCross answer for the clue below from House of Horrors, Group 1105, Puzzle 5 (Loose Floorboards).
Question is: Making a Low-Pitched Monotone Sound
and the answer is: DRONING
Word Meaning:
DRONING — present participle and gerund of drone
Definitions from Wiktionary.