go ahead phrasal verb ( see also ↑ go )
1 . to start to do something, especially after planning it or asking permission to do it
go ahead with
They’ve decided to go ahead with plans to build 50 new houses on the site.
go ahead and do something
I went ahead and arranged the trip anyway.
2 . if an event or process goes ahead, it happens:
A judge has ruled that the music festival can go ahead.
3 . spoken used to give someone permission to do something, or let them speak before you:
‘Do you mind if I open the window?’ ‘No, go ahead.’
If you want to leave, go right ahead.
4 . ( also go on ahead ) to go somewhere before the other people in your group:
You go ahead and we’ll catch you up later.
go ahead of
He stood back to let Sue go ahead of him.
5 . to start to be winning a game or competition:
Dulwich went ahead after 22 minutes.
⇨ ↑ go-ahead 1