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.

Gadget Used By Referees To Make High-pitched Sounds - Health and Fitness CodyCross Answers | CodyCross Solutions