Jisho

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Noun
1. mu
Wikipedia definition
2. Mu (letter)Mu is the 12th letter of the Greek alphabet. In the system of Greek numerals it has a value of 40. Mu was derived from the Egyptian hieroglyphic symbol for water (𓈖) which had been simplified by the Phoenicians and named after their word for water, to become mem . Letters that arose from mu include the Roman M and the Cyrillic М.
Read “Mu (letter)” on English Wikipedia
Read “Μ” on Japanese Wikipedia
Read “Mu (letter)” on DBpedia
Other forms
μ 【ミュー】

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