Taciturn or Taciturnity may refer to:
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HMS Taciturn (P334), a British submarine of the third group of the T class
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Silence
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Abandonment (legal) (known as taciturnity in Scots law), failure to assert a legal right in a way that implies abandonment of the right
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William the Silent (also known as William the Taciturn), leader of the Dutch revolt against the Spanish Habsburgs that set off the Eighty Years' War
