IPA: /ˈkɒləboʊn/
KK: /ˈkɑːlərboʊn/
The collarbone is a long, thin bone that connects the arm to the body, located at the top of the chest.
He fell and hurt his collarbone while playing football.
Collarbone → It is formed from "collar" (from Old French *colier*, meaning a neckband or collar) and "bone" (from Old English *ban*, meaning bone). The word "collarbone" refers to the bone that is situated near the collar or neck area.
Think of a 'neckband' ('collar') that is connected to a 'bone' — the collarbone is the bone near your neck.
No commonly confused words.