Gadget Used by Referees to Make High-Pitched Sounds
This page is the CodyCross answer for the clue below from Health and Fitness, Group 2139, Puzzle 2 (Augmented Fitness).
Question is: Gadget Used by Referees to Make High-Pitched Sounds
and the answer is: WHISTLE
Word Meaning:
WHISTLE — A device designed to be placed in the mouth and blown, or driven by steam or some other mechanism, to make a whistling sound.
Definitions from Wiktionary.