barking up the wrong tree – means to be wrong about how to achieve something or what the reason for something is/was, for example:
A: I have been looking for the answer for months, and I still haven’t found it.
B: Maybe you’ve been barking up the wrong tree.
What does the word bark mean?
- it’s a loud sound that a dog makes, for example:
1) My dog always barks at neighbours.
- it’s a loud, quick sound that human beings make, for example:
2) “Leave me alone”, she barked at him.