To follow up is to take a further step after a first one. Follow up the letter with a call.
It is where most things actually get done, since a first approach rarely settles anything. To follow up too soon reads as pressure and too late reads as indifference.
1phrasefollow upTo take a further step after a first one.
“Nobody bothered to follow up the complaint for eleven weeks.”
follow up is a phrase.
Practised in Phrasal Verbs