Gramogram - Wikipedia

Roman numerals - Wikipedia

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Sam Omega - My 'Original' Omnitrix Alien Playlists by infinityalbi10 on DeviantArt

R in R U OK, 8 in gr8t: What do you call the abbreviation process of representing a sound by a letter or number based on the name of that letter or

Roman Numerals: Most Up-to-Date Encyclopedia, News & Reviews

Is Latin by any means related to Sumerian in some way? - Quora

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Is there a word for words that sound like a single letter? Eg: Tea and T? or See and C? You and U? : r/NoStupidQuestions