"Crossing someone out on a list "
I know that it usually is "crossing someone out", like:
I:Why is her name crossed out?
Person: Because she is not going.
But my question is whether it will sound natural in "on the list" is included in a few contexts? Will it sound unnatural or natural, if not resundant in few cases...
I: Why is her name crossed out on the list?
Solution 1:
In the context of list, the standard phrase is
Her name was crossed off the list.
(At least, in US English.)
Definition of to cross off from Merriam Webster):
to draw a line through (a name or item on a list) Example: We can cross her off our list of potential donors.
Your proposed sentence would be understood, but the one I've provided is more standard.