<p><strong>Noun</strong></p><ul><li>Phonetics, Orthography: A diacritic (¸) placed under a consonant letter, as under c in French, in Portuguese, and formerly in Spanish, to indicate that it is pronounced (s), under c and s in Turkish to indicate that they are pronounced, respectively, (ch) and (sh), or under t and s in Romanian to indicate that they are pronounced, respectively, (ts) and (sh).</li><li>Orthography: This mark used as a diacritic of arbitrary value in transliteration of words from non-Roman into Roman alphabetic characters.</li></ul><p><strong>End of Response</strong></p>