ˌbottom ˈline BrE AmE noun [singular]
1 . the bottom line used to tell someone what the most important part of a situation is, or what the most important thing to consider is:
In radio, you have to keep the listener listening. That’s the bottom line.
2 . the profit or the amount of money that a business makes or loses
3 . the least amount of money that you are willing to accept in a business deal
—bottom-line adjective