If two subcultures use the same realization (pronunciation) of the same word form (particular inflection of a word) but spell it differently, what is the technical term for the alternative spellings?
One example: apparently in the old days when the word "ye" would show up in books it was actually meant to be pronounced "the", as the "y" was used to stand in for the thorn character ("þ"), which represented the "th" (voiced fricative) sound.
A modern example I can think of is "leet speak", where words are spelled with numbers and other non-alphabetic symbols. So "speak" could be represented as "5|>34|<", and both the meaning and pronunciation of the word form remain the same as "speak", with only the written representation changing.
I'm looking for a term that captures the fact that the two written representations share the same pronunciation, inflection, and meaning. The terms "alternative spelling" or "alternative grapheme sequence" seem like they could serve my purpose but I'm wondering if linguists have decided on some other term instead.