IPA: /ˈmæntəlˌʃɛlf/
KK: /ˈmæn.təl.ʃɛlf/
A shelf that is placed above a fireplace, often used for displaying decorative items or photographs.
She decorated the mantelshelf with family photos and candles.
Mantelshelf → The word is formed from "mantel" (from Old French *manteau*, meaning a covering or cloak) and "shelf" (from Old English *cealf*, meaning a ledge or support). A mantelshelf is a shelf that serves as a covering or decorative ledge above a fireplace.
Think of a 'covering' ('mantel') that serves as a 'support' ('shelf') above a fireplace — that's what a mantelshelf is.
No commonly confused words.