IPA: /ˈkɛr.fəli/
KK: /ˈkɛr.fəl.i/
In a way that shows attention and caution to avoid mistakes or harm.
She carefully placed the fragile vase on the shelf.
Carefully → It is formed from "care" (from Old English *caru*, meaning worry or concern) and "-fully" (meaning in a manner full of). The word "carefully" means in a manner full of care or concern.
Think of being full of 'care' — that's why 'carefully' means doing something with great attention and concern.