Historical clue formulations

• Linguistic unit — 2022-03-06
• "Sh," "th" or "ou" — 2017-12-31
• Basic linguistic unit — 2016-10-13
• Figure of speech? — 2012-08-11
• "Call!" — 2004-06-04
• Pronunciation key representation — 2003-09-27
• "Sh" or "th," linguistically — 1996-10-21