What is the meaning of *?

Sal ammoniac (6 or 8 point).

A star (5 or 6 point).

Alternative form of * * (encloses an interpretation)

Used as a multiplication symbol; ×.

Used as a wildcard to detect zero or more occurrences of the preceding element.

  1. Complex or transpose conjugate; conjugate.
  2. Free monoid or Kleene star.

    Complex or transpose conjugate; conjugate.

    Free monoid or Kleene star.

    Dual space.

    Snow (6 point).

    Used to designate a resonance.

    a reserved symbol with no set meaning, that needs to be defined by the transcriber. May be used as a letter or as a diacritic.

    1. Used before a term (such as a word, phrase, or sentence) to show that it is grammatically incorrect, or in some other way ill-formed.

      Used before a term (such as a word, phrase, or sentence) to show that it is grammatically incorrect, or in some other way ill-formed.

      Used before or after a term to denote that it is only hypothesized and not actually attested.

      1. When used before a term: that the term has been reconstructed by a linguist, on the basis of comparative method or by comparing other reconstructed terms, as the plausible ancestor form of an existing, attested term in one or more languages.

        When used before a term: that the term has been reconstructed by a linguist, on the basis of comparative method or by comparing other reconstructed terms, as the plausible ancestor form of an existing, attested term in one or more languages.

        When used after a term: that the term is actually attested, but not in its citation form that is being mentioned.

        When used before a symbol representing a phoneme: that the phoneme is reconstructed on the basis of comparative method.

        When used before a symbol representing a sound value: that the sound value is hypothesized.

        A pointing mark in Anglican chant, which marks a place in the text where an extra breath should be taken, resulting in a brief pause.

        Used to censor sections of obscene or profane words.

        Used to censor non-offensive words to treat them as insulting or profane.

        Used in a dictionary or similar work to indicate a cross-reference to another entry.

        Used at the beginning of a footnote, especially if it is the only one on the page, and after a word, phrase, or sentence that this footnote relates to.

        Used at the beginning of a clarifying statement or disclaimer, especially if it is the only one on the page.

        Used to marks a score or statistic that is incomplete, such as the score of a batsman who is (or was) not out.

        Uses especially in computing.

        1. Used as a wildcard to denote zero or more characters.

          Used as a wildcard to denote zero or more characters.

          Used to indicate a field of a form that must be filled out.

          Used before or after a word to show a correction has been made, chiefly by the same participant.

          Used before a date to denote that it is a birthdate.

          Used to indicate emphasis, see * *.

          Used to form a dinkus, * * *, or asterism, .

          Star.

          Used to replace the sounds /stɑː(ɹ)/ (star) in any word that has this pronunciation or similar.

          : A star (also or ).

          the Gendersternchen; Used to separate multiple gendered inflections in gender-neutral writing.

          Source: wiktionary.org