Learner's definition of BOTTOM LINE
the bottom line
1 a : the most important part of something: the most important thing to consider
b : the final result or outcome
The bottom line [=all that matters] is that the product just wasn't practical.
If our flight is late, we will miss our connection. That's the bottom line.
2 [singular] : a company's profits or losses 3 [singular] : the least amount of money you are willing to consider for something