Flashing Lights and Klaxons on Ambulances

This page is the CodyCross answer for the clue below from Underground Worlds, Group 2175, Puzzle 2 (Expeditions).

Question is: Flashing Lights and Klaxons on Ambulances

and the answer is: SIRENS

Word Meaning:

SIRENS — plural of siren

Definitions from Wiktionary.