"this is it" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
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      "_dis1": "0 0",
      "word": "that's all"
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      "_dis1": "0 0",
      "word": "that's it"
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    {
      "_dis1": "0 0",
      "word": "this is the life"
    }
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      "examples": [
        {
          "ref": "1986, Caroline Richards, Sweet Country, page 6:",
          "text": "Yesterday, when I heard that General Prats had resigned as Commander-in-Chief, I thought to myself, This is it. The Fascists have finally driven him out.",
          "type": "quote"
        },
        {
          "ref": "2014, Patrick Tucker, Secrets of Screen Acting:",
          "text": "This is it: the moment of truth. This is when the preparation and work of all contributors is finally put to the test.",
          "type": "quote"
        },
        {
          "ref": "2017, Andrew M. Greeley, God in the Movies, page 20:",
          "text": "In this cinematic epiphany Bridges has gone from panic and fear of crashing (“He can't steer, we're going down”) to a shock-induced realization of his own mortality (“This is it, the moment of your death”) to realizing the possibility of something like life after death (\"I am not afraid, I have no fear\").",
          "type": "quote"
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      ],
      "glosses": [
        "Used to indicate that something important has finally happened or is about to happen."
      ],
      "id": "en-this_is_it-en-phrase-8HT835q1"
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    {
      "categories": [],
      "examples": [
        {
          "ref": "1977, Bill Knott, The Craft of Fiction, page 6:",
          "text": "Remember, the key here is that you know that this is it, the last copy; there will be no more chances to revise, no typist to complete this onerous task.",
          "type": "quote"
        },
        {
          "ref": "2015, Phil Zuckerman, Faith No More: Why People Reject Religion, page 129:",
          "text": "It makes me want to have more of an influence on the world while I'm here because this is it. This is my only shot.",
          "type": "quote"
        },
        {
          "ref": "2019, Sreenivas Madhira, This is it: Yet another NDE? Or, is it just END?:",
          "text": "“So,” completely resigned to a dreary world, “this is it? There is nothing to look forward to? We get just one life? It hardly seems worth it, doesn't it?”",
          "type": "quote"
        },
        {
          "ref": "2021, Conor Creighton, This Is It:",
          "text": "The key to happiness is recognising that, yes, this is it. You're all you have to work with and this moment is the only one you have any control over.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Used to acknowledge the limits of something."
      ],
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  "word": "this is it"
}

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      "word": "that's all"
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      "word": "that's it"
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      "word": "this is the life"
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      "examples": [
        {
          "ref": "1986, Caroline Richards, Sweet Country, page 6:",
          "text": "Yesterday, when I heard that General Prats had resigned as Commander-in-Chief, I thought to myself, This is it. The Fascists have finally driven him out.",
          "type": "quote"
        },
        {
          "ref": "2014, Patrick Tucker, Secrets of Screen Acting:",
          "text": "This is it: the moment of truth. This is when the preparation and work of all contributors is finally put to the test.",
          "type": "quote"
        },
        {
          "ref": "2017, Andrew M. Greeley, God in the Movies, page 20:",
          "text": "In this cinematic epiphany Bridges has gone from panic and fear of crashing (“He can't steer, we're going down”) to a shock-induced realization of his own mortality (“This is it, the moment of your death”) to realizing the possibility of something like life after death (\"I am not afraid, I have no fear\").",
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      ],
      "glosses": [
        "Used to indicate that something important has finally happened or is about to happen."
      ]
    },
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1977, Bill Knott, The Craft of Fiction, page 6:",
          "text": "Remember, the key here is that you know that this is it, the last copy; there will be no more chances to revise, no typist to complete this onerous task.",
          "type": "quote"
        },
        {
          "ref": "2015, Phil Zuckerman, Faith No More: Why People Reject Religion, page 129:",
          "text": "It makes me want to have more of an influence on the world while I'm here because this is it. This is my only shot.",
          "type": "quote"
        },
        {
          "ref": "2019, Sreenivas Madhira, This is it: Yet another NDE? Or, is it just END?:",
          "text": "“So,” completely resigned to a dreary world, “this is it? There is nothing to look forward to? We get just one life? It hardly seems worth it, doesn't it?”",
          "type": "quote"
        },
        {
          "ref": "2021, Conor Creighton, This Is It:",
          "text": "The key to happiness is recognising that, yes, this is it. You're all you have to work with and this moment is the only one you have any control over.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Used to acknowledge the limits of something."
      ]
    }
  ],
  "word": "this is it"
}