Tier List Central — tier list of all the muppets in the current meta . In the novel, boo is a recluse, so the name would fit well with a shy dog. A diacritic (also diacritical mark, diacritical point, diacritical sign, or accent) is a glyph added to a letter or to a basic glyph. Tier List Central — tier list of all the muppets in the current meta from tierlistcentral.tumblr.com Young adults who are very politically correct and offended easily. The term derives from the ancient greek διακριτικός (diakritikós, distinguishing), from διακρίνω (diakrī́nō, to distinguish).the word diacritic is a noun, though it is sometimes used in an attributive sense, whereas diacritical is only. Rainbow connection is a song from the 1979 film the muppet movie, with music and lyrics written by paul williams and kenneth ascher.