How does one pluarlize an acronym (or initialism) when the first letter of the acronym is the one to be pluarlized?
What acronym is to be used for "ways of reasoning" if WoR is "way of reasoning"?
From the Wikipedia page Acronym.
A particularly rich source of options arises when the plural of an acronym would normally be indicated in a word other than the final word if spelled out in full. A classic example is Member of Parliament, which in plural is Members of Parliament. It is possible then to abbreviate this as M's P. (or similar), as used by former Australian Prime Minister Ben Chifley. This usage is less common than forms with s at the end, such as MPs, and may appear dated or pedantic. In common usage, therefore, weapons of mass destruction becomes WMDs, prisoners of war becomes POWs, and runs batted in becomes RBIs.