"catch on fire" meaning in English

{
  "forms": [
    {
      "form": "catches on fire",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "catching on fire",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "caught on fire",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "caught on fire",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "<,,caught>",
        "head": "~on fire:~"
      },
      "expansion": "catch on fire (third-person singular simple present catches on fire, present participle catching on fire, simple past and past participle caught on fire)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "catch fire"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Fire",
          "orig": "en:Fire",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of catch fire."
      ],
      "id": "en-catch_on_fire-en-verb-M2itquR8",
      "links": [
        [
          "catch fire",
          "catch fire#English"
        ]
      ],
      "raw_glosses": [
        "(informal, sometimes proscribed) Alternative form of catch fire."
      ],
      "tags": [
        "alt-of",
        "alternative",
        "informal",
        "proscribed",
        "sometimes"
      ]
    }
  ],
  "word": "catch on fire"
}

{
  "forms": [
    {
      "form": "catches on fire",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "catching on fire",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "caught on fire",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "caught on fire",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "<,,caught>",
        "head": "~on fire:~"
      },
      "expansion": "catch on fire (third-person singular simple present catches on fire, present participle catching on fire, simple past and past participle caught on fire)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "catch fire"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English proscribed terms",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Fire"
      ],
      "glosses": [
        "Alternative form of catch fire."
      ],
      "links": [
        [
          "catch fire",
          "catch fire#English"
        ]
      ],
      "raw_glosses": [
        "(informal, sometimes proscribed) Alternative form of catch fire."
      ],
      "tags": [
        "alt-of",
        "alternative",
        "informal",
        "proscribed",
        "sometimes"
      ]
    }
  ],
  "word": "catch on fire"
}