Is a muff the same as a fumble in BB?

[Scrapper1]

"Muff" is not defined in basketball. So it's unclear if a muff occurs when there's player control, team control, no control. Using the word "muff" in a basketball conversation doesn't really tell you anything.

On the other hand, "fumble" is clearly defined as a loss of player control when the ball drops or slips from a player's grasp. So that tells us that there WAS player control, there is no longer player control, but there is still team control.

A muff, at least in a very loose "layman's" sense, simply means that a player was unable to secure control of the ball.

I would not use the two terms interchangeably. In fact, I would not use the term "muff" at all.