IPA: /ˈspiːdɪli/
KK: /ˈspidɪli/
In a quick or fast way.
She completed the project speedily to meet the deadline.
Speedily → It is formed from "speed" (from Old English *spēd*, meaning success or prosperity) and the suffix "-ily" (meaning in a manner of). The word "speedily" means in a manner that is quick or fast.
Think of 'speed' as a measure of how fast something is, and remember that 'speedily' means doing something in a quick manner.