IPA: /ˈsmɑrtli/
KK: /smɑrtli/
In a way that shows intelligence or good judgment; in a clever or stylish manner.
She dressed smartly for the interview, impressing everyone with her appearance.
Smartly → It is formed from "smart" (from Old English *smeart*, meaning quick or lively) and the suffix "-ly" (meaning in a manner of). The word "smartly" means in a quick or lively manner.
Think of being 'quick' or 'lively' ('smart') and doing it 'in a manner' ('-ly'). This helps you remember that 'smartly' means to do something in a lively or quick way.