IPA: /ˈbrɛstˌwɜrk/
KK: /ˈbrɛstˌwɜrk/
A temporary structure built for defense, often made to be as high as a person's chest.
The soldiers built a breastwork to protect themselves from enemy fire.
Breastwork → It is formed from "breast" (from Old English "brēost", meaning the front part of the body) and "work" (from Old English "weorc", meaning something made or constructed). The term "breastwork" refers to a defensive structure that is built up to the height of the breast, providing protection.
Think of the 'front part of the body' ('breast') being 'constructed' ('work') into a protective barrier. This helps you remember that a breastwork is a defensive structure.