"main thing" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "main thing (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Hungarian translations",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2024 June 19, Vaush, 02:41 from the start, in IDF GENERALS APPROVE PLAN TO INVADE LEBANON, spoken by Vaush (Ian Kochinski):",
          "text": "‘This country just exists in perpetual conflict’. Yeah, they love that shit, man! Fascists live for perpetual war! They love that! That’s their main thing! They love forever war! What is a fascist without war?",
          "type": "quote"
        }
      ],
      "glosses": [
        "The most important factor; the principle consideration."
      ],
      "id": "en-main_thing-en-noun-xx5Z3YT2",
      "links": [
        [
          "factor",
          "factor"
        ],
        [
          "consideration",
          "consideration"
        ]
      ],
      "tags": [
        "uncountable"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "most important factor",
          "tags": [
            "feminine"
          ],
          "word": "Hauptsache"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "most important factor",
          "word": "fő"
        }
      ]
    }
  ],
  "word": "main thing"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "main thing (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with German translations",
        "Terms with Hungarian translations"
      ],
      "examples": [
        {
          "ref": "2024 June 19, Vaush, 02:41 from the start, in IDF GENERALS APPROVE PLAN TO INVADE LEBANON, spoken by Vaush (Ian Kochinski):",
          "text": "‘This country just exists in perpetual conflict’. Yeah, they love that shit, man! Fascists live for perpetual war! They love that! That’s their main thing! They love forever war! What is a fascist without war?",
          "type": "quote"
        }
      ],
      "glosses": [
        "The most important factor; the principle consideration."
      ],
      "links": [
        [
          "factor",
          "factor"
        ],
        [
          "consideration",
          "consideration"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "most important factor",
      "tags": [
        "feminine"
      ],
      "word": "Hauptsache"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "most important factor",
      "word": "fő"
    }
  ],
  "word": "main thing"
}