Microsoft Word says that I SHOULD NOT use "all" or "all of" when I mean a total or the whole of a singular item and SHOULD use "the entire" instead. I typed "I am sick of all the lie" and Microsoft Word gave me a green squiggly line starting from "all" to "the." I'd like to know if this were? true, or my Microsoft Word is just not updated.
If lie is singular, then your computer is right, it's awkward to write "all the lie." It would look to the reader like what you meant to say is "I'm sick of all the lies."
If you're trying to express that you're sick of every part of one lie, you have several options:
I'm sick of the whole lie.
I'm sick of the entire lie.
And you could use a thesaurus to find even more options.
If you want to say that you're sick of multiple lies, and you really want to keep "lie" singular for some reason, you could write:
I'm sick of every lie.