I'm quite a bit confused about the meaning of this word. I remember searching up this word or having seen something that indicates that "notch/notches" are marks (for example, the marks that are around a radio button that serve as indicators for how high or how low the volume is and etc...), but when I look up the meaning it doesn't say anything about it besides the meaning of "dent" or something completely unrelated to what I thought.
I also know that notch means the part where the camera is built in on a smartphone. So I already got that.
I also know the meaning of the phrase "let's kick it up a notch".
But I don't know what it really is....!!!!!!
Does it mean marks? Like I previously stated 🤔 (like on a burner or a radio).
My brain is on fire.