IPA: /ˈtʌfli/
KK: /tʌfli/
Not easily broken or defeated; strong and resilient.
She handled the situation toughly, showing her strength and determination.
Toughly → It is formed from "tough" (from Old English *tōh*, meaning strong or resilient) and the suffix "-ly" (meaning in a manner of). The word "toughly" means in a manner that is strong or resilient.
Think of being strong or resilient ('tough') and how doing something 'in that manner' ('-ly') means you are doing it toughly.