- a variant form of a grapheme that is in complementary distribution or free variation with another form of the same grapheme, as t and T or n in run and nn in runner; an orthographic contextual variant.
- writing or a signature inscribed by one person for another, as distinguished from autograph.
- a deed or other legal document not in the writing of any of the persons who are party to it.
- a document written by a person who is not a party to it
- a signature made by one person on behalf of another
- any of the written symbols that constitute a single grapheme
