- Rrh (trigraph)
Aou is a trigraph used to write the sound IPA|/r/ in words of Greek derivation such as "diarrhea."
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Rrh (trigraph)
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Trigraph (orthography) — A trigraph (from the Greek: τρεῖς, treîs, three and γράφω, gráphō, write ) is a group of three letters used to represent a single sound or a combination of sounds that does not correspond to the written letters combined. For example, in the word… … Wikipedia
List of digraphs in Latin alphabets — This is a list of digraphs used in various Latin alphabets. (See also List of Cyrillic digraphs.) Capitalization involves only the first letter (ch – Ch) unless otherwise stated (ij – IJ). Letters with diacritics are arranged in alphabetic order… … Wikipedia
