IPA: /ˈfaɪərˌbreɪk/
KK: /ˈfaɪərˌbreɪk/
A cleared area of land that helps prevent the spread of fire, especially in forests or grasslands.
The firefighters created a firebreak to protect the nearby houses from the approaching wildfire.
Firebreak → It is formed from "fire" (from Old English "fyr", meaning combustion or flame) and "break" (from Old English "brecan", meaning to break or shatter). A firebreak is a barrier created to stop or slow the spread of fire.
Imagine a barrier that 'breaks' the path of 'fire' — that's what a firebreak does, it stops the fire from spreading.
No commonly confused words.