"set in" meaning in English

{
  "forms": [
    {
      "form": "sets in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "setting in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "set in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "set in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "set<,,set> in"
      },
      "expansion": "set in (third-person singular simple present sets in, present participle setting in, simple past and past participle set in)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs with particle (in)",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "That was the point at which the rot set in.",
          "type": "example"
        },
        {
          "ref": "1941 November, Cecil J. Allen, “British Locomotive Practice and Performance”, in Railway Magazine, page 484",
          "text": "[...] but rain set in, driven by a furious westerly gale, [...].",
          "type": "quotation"
        },
        {
          "ref": "1960 March, “The January blizzard in the North-East of Scotland”, in Trains Illustrated, page 137",
          "text": "By the afternoon it seemed as if the storm had passed and that frost was setting in; but in the evening the wind rose to gale force, bringing telegraph poles down like skittles and tangling power and telephone lines.",
          "type": "quotation"
        },
        {
          "ref": "1964 September, “Motive Power Miscellany: BR Workshops”, in Modern Railways, page 220",
          "text": "Work on anti-frost precautions on diesel locomotives is to be speeded up to ensure that most if not all locomotives have been dealt with before the winter sets in.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To take root, become established."
      ],
      "id": "en-set_in-en-verb-EGbEuxm9",
      "links": [
        [
          "take root",
          "take root"
        ]
      ],
      "related": [
        {
          "word": "inset"
        },
        {
          "word": "set-in sleeve"
        }
      ],
      "translations": [
        {
          "code": "it",
          "lang": "Italian",
          "sense": "to take root",
          "word": "attecchire"
        }
      ]
    }
  ],
  "word": "set in"
}

{
  "forms": [
    {
      "form": "sets in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "setting in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "set in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "set in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "set<,,set> in"
      },
      "expansion": "set in (third-person singular simple present sets in, present participle setting in, simple past and past participle set in)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "inset"
    },
    {
      "word": "set-in sleeve"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs with particle (in)",
        "English terms with quotations",
        "English terms with usage examples",
        "English verbs"
      ],
      "examples": [
        {
          "text": "That was the point at which the rot set in.",
          "type": "example"
        },
        {
          "ref": "1941 November, Cecil J. Allen, “British Locomotive Practice and Performance”, in Railway Magazine, page 484",
          "text": "[...] but rain set in, driven by a furious westerly gale, [...].",
          "type": "quotation"
        },
        {
          "ref": "1960 March, “The January blizzard in the North-East of Scotland”, in Trains Illustrated, page 137",
          "text": "By the afternoon it seemed as if the storm had passed and that frost was setting in; but in the evening the wind rose to gale force, bringing telegraph poles down like skittles and tangling power and telephone lines.",
          "type": "quotation"
        },
        {
          "ref": "1964 September, “Motive Power Miscellany: BR Workshops”, in Modern Railways, page 220",
          "text": "Work on anti-frost precautions on diesel locomotives is to be speeded up to ensure that most if not all locomotives have been dealt with before the winter sets in.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To take root, become established."
      ],
      "links": [
        [
          "take root",
          "take root"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "it",
      "lang": "Italian",
      "sense": "to take root",
      "word": "attecchire"
    }
  ],
  "word": "set in"
}