Endline vs. Baseline

[Camron Rust]

Baseline may not be the precise word as is used in the rulebook but there is no need to worry about which word to use in this case....it is completely unlike other unofficial words such as "over-the-back" or "reaching". Neither baseline nor endline convey any different meaning relative to the other; they are precise synonyms of each other. EVERYONE knows exactly what you're talking about no matter which one you use.

Merriam-Webster dictionary (and several others) also define it to mean the ends of the basketball court.

Also, one of the sides of a rectangle is properly called the "base". The basketball court is a rectangle.