Meaning 1 · most common
proceed

to start doing something or continue after getting permission or deciding it’s okay.
Examples
If you’re ready, you can go ahead and start the presentation.
A: Is it okay if I ask a question now?
B: Sure, go ahead.
Common mistake
Not: Can I start? — Yes, go ahead to start.
Say: Can I start? — Yes, go ahead.
'Go ahead' stands alone as permission. Don't add 'to + verb'.
More on “proceed”Another example · Tell it apart · Goes with · Tip
Another example
During the exam, the teacher told us to go ahead and open our papers.
Tell it apart
Go ahead, ask me anything.
The project went ahead.
Goes with
- go ahead (and)
