"walk in on" meaning in English

{
  "forms": [
    {
      "form": "walks in on",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "walking in on",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "walked in on",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "walked in on",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "walk in on (third-person singular simple present walks in on, present participle walking in on, simple past and past participle walked in on)",
      "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 formed with \"in\"",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs formed with \"on\"",
          "parents": [],
          "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 Arabic translations",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "He accidentally walked in on me while I was undressing.",
          "type": "example"
        }
      ],
      "glosses": [
        "To enter suddenly or unexpectedly while something is happening; to intrude or interrupt by entering."
      ],
      "id": "en-walk_in_on-en-verb-18bRcDDL",
      "links": [
        [
          "enter",
          "enter"
        ],
        [
          "intrude",
          "intrude"
        ],
        [
          "interrupt",
          "interrupt"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To enter suddenly or unexpectedly while something is happening; to intrude or interrupt by entering."
      ],
      "tags": [
        "idiomatic"
      ],
      "translations": [
        {
          "code": "ar",
          "lang": "Arabic",
          "roman": "daḵala ʕalā",
          "sense": "Translations",
          "word": "دَخَلَ عَلَى"
        }
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-walk in on.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/69/En-au-walk_in_on.ogg/En-au-walk_in_on.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/6/69/En-au-walk_in_on.ogg"
    }
  ],
  "word": "walk in on"
}

{
  "forms": [
    {
      "form": "walks in on",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "walking in on",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "walked in on",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "walked in on",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "walk in on (third-person singular simple present walks in on, present participle walking in on, simple past and past participle walked in on)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"in\"",
        "English phrasal verbs formed with \"on\"",
        "English terms with usage examples",
        "English verbs",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Arabic translations",
        "Translation table header lacks gloss"
      ],
      "examples": [
        {
          "text": "He accidentally walked in on me while I was undressing.",
          "type": "example"
        }
      ],
      "glosses": [
        "To enter suddenly or unexpectedly while something is happening; to intrude or interrupt by entering."
      ],
      "links": [
        [
          "enter",
          "enter"
        ],
        [
          "intrude",
          "intrude"
        ],
        [
          "interrupt",
          "interrupt"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To enter suddenly or unexpectedly while something is happening; to intrude or interrupt by entering."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-walk in on.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/69/En-au-walk_in_on.ogg/En-au-walk_in_on.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/6/69/En-au-walk_in_on.ogg"
    }
  ],
  "translations": [
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "daḵala ʕalā",
      "sense": "Translations",
      "word": "دَخَلَ عَلَى"
    }
  ],
  "word": "walk in on"
}