If you think about it toast is pretty weird.

Making bread is quite an involved process, there’s mixing, kneeding, leavening. Then a bit of squishing, then cooking. Eating seems to naturally follow all this hard work.
Unless, you decide that after having done all this (or strolled down to the local baker/supermarket, whatever) you’re going to cook it again!
A flash burn of cooking, close to burning on both sides to produce ‘toast’.
I think that ‘toast’ could quite legitiamtely be called biscuit bread, due to the cooked twice nature of it.

Even though some people call something else biscuit bread.