Come on!

Come on!
Example 1:
A: Come on! We must catch this train.
B: O.K. Let’s move.

Example 2:
A: Come on! I’ll beat you this time!
B: Come on! Who dare you?

Example 3:
A: Come on! I’m very confident in you. You will win.
B: Thank you. I’ll do my best.

Example 4:
A: She sold me and I hate her.
B: Come on! Live and let live.

Example 5:
Fifty bucks? Oh, come on! I just pay 30 bucks.
O.K. It’s a deal.

Synonyms:
Cheer up!
I don’t believe you!
Come along!
Make an effort!
Hurry up