IPA: /ɪɡˈzæktli/
KK: /ɪɡˈzæktli/
In a precise or accurate way; without any mistakes or differences.
She followed the instructions exactly as they were given.
Exactly → It is formed from "ex-" (meaning out of or from) and "act" (from Latin "agere", meaning to do or to act) and the suffix "-ly" (meaning in a manner). The word "exactly" means in a manner that is precise or done out of a specific action.
Think of something being done 'out of' ('ex-') a specific action ('act') — that's why exactly means in a precise manner.