"up in arms" meaning in English

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  "etymology_text": "From a now-obsolete sense of up (“in revolt”).",
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  "lang_code": "en",
  "pos": "adj",
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      "glosses": [
        "Armed for battle; prepared for or engaged in warfare."
      ],
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      "links": [
        [
          "Armed",
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          "battle",
          "battle"
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          "warfare",
          "warfare"
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      "raw_glosses": [
        "(literal, now uncommon) Armed for battle; prepared for or engaged in warfare."
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      "related": [
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          "_dis1": "61 39",
          "word": "in arms"
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          "_dis1": "61 39",
          "word": "under arms"
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        {
          "text": "The union members are up in arms over threats of pay cuts.",
          "type": "example"
        },
        {
          "ref": "2003 September 28, David Diamond, “The Way We Live Now: 9-28-03: Questions for Linus Torvalds; The Sharer”, in The New York Times Magazine",
          "text": "Is file-sharing, which has the recording industry so up in arms, the “dark side” of open-source attitudes?",
          "type": "quotation"
        },
        {
          "ref": "2023 March 24, Nathan J. Robinson, “The Problem With AI Is the Problem With Capitalism”, in Jacobin",
          "text": "Many artists are up in arms about the new AI programs — and with good reason. Some are furious that their works have been used as training data without their permission.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Angry; incensed; preparing for a fight."
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          "incensed",
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          "fight",
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        "(figuratively) Angry; incensed; preparing for a fight."
      ],
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  "word": "up in arms"
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  "etymology_text": "From a now-obsolete sense of up (“in revolt”).",
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  "lang_code": "en",
  "pos": "adj",
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    {
      "word": "in arms"
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      "word": "under arms"
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      "glosses": [
        "Armed for battle; prepared for or engaged in warfare."
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        "(literal, now uncommon) Armed for battle; prepared for or engaged in warfare."
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        {
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        },
        {
          "ref": "2003 September 28, David Diamond, “The Way We Live Now: 9-28-03: Questions for Linus Torvalds; The Sharer”, in The New York Times Magazine",
          "text": "Is file-sharing, which has the recording industry so up in arms, the “dark side” of open-source attitudes?",
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        {
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        "Angry; incensed; preparing for a fight."
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        "(figuratively) Angry; incensed; preparing for a fight."
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