Search across reviewed usage, phrase and writing guides. Different wording for the same question points to one main guide.
2 reviewed matches for “principal vs principle”, ranked by title, related search wording, summary and topic fit.
“Principal” can be an adjective meaning most important and a noun for the head of a school or similar institution; “principle” is a noun for a rule, theory, or moral standard. Because the words are pronounced alike in common English, meaning and word class are the safest diagnostics.
The slash `/` and backslash `\` are different characters with different technical uses. Unicode identifies them as SOLIDUS and REVERSE SOLIDUS, and Microsoft writing guidance distinguishes slash use in web addresses and general constructions from backslash use in server or folder paths.
