"oo" meaning in Estonian

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      "expansion": "oo (genitive [please provide], partitive [please provide])",
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      "expansion": "oo (genitive [please provide], partitive [please provide])",
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        "The name of the Latin-script letter O."
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  "word": "oo"
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      "expansion": "oo (genitive [please provide], partitive [please provide])",
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