IPA: /ˈhaɪli/
KK: /ˈhaɪli/
In a way that shows a great degree or level of something; very much or very well.
She is highly skilled in her profession.
Highly → It is formed from "high" (from Old English "hēah", meaning tall or elevated) and "-ly" (a suffix used to form adverbs). The word "highly" means in a high manner or to a great degree.
Think of something that is 'tall' or 'elevated' ('high') and how it can be done 'in a manner' ('-ly') that is significant or great.