IPA: /ˈbætəlˌfiːld/
KK: /ˈbætəlˌfild/
A place where a fight or conflict occurs, especially in a war.
The soldiers prepared for the battle on the battlefield.
Battlefield → It is formed from "battle" (from Old French *bataille*, meaning a fight or conflict) and "field" (from Old English *feld*, meaning an open area of land). The word "battlefield" refers to an open area where a fight or conflict takes place.
Imagine an open area of land ('field') where a fight ('battle') occurs — that's what a battlefield is.
No commonly confused words.