"keep cave" meaning in English

{
  "etymology_text": "Used at Eton College, Berkshire, England. See cave (“look out, beware”).",
  "forms": [
    {
      "form": "keeps cave",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "keeping cave",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "kept cave",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "kept cave",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "keep<,,kept> cave"
      },
      "expansion": "keep cave (third-person singular simple present keeps cave, present participle keeping cave, simple past and past participle kept cave)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1899 January, Rudyard Kipling, “An Unsavoury Interlude”, in Stalky & Co., London: Macmillan & Co., published 1899, →OCLC, page 73:",
          "text": "I vote we go down and explore. No one will come up this time o' day. We needn't keep cavé.",
          "type": "quote"
        },
        {
          "ref": "1911, Cosmo Hamilton, “Why Cupid Came to Earl’s Court”, in Short Plays for Small Stages, page 9:",
          "text": "I'll keep cave for ten minutes.",
          "type": "quote"
        },
        {
          "ref": "1912, Ethel Turner, Seven Little Australians, page 154:",
          "text": "Pip was mounting guard at the shed, and had undertaken to get Judy safely away, and Bunty had been stationed on the back verandah to keep cave and whistle three times if there was any danger.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To maintain vigilance."
      ],
      "id": "en-keep_cave-en-verb-gQ1uAlmK",
      "links": [
        [
          "school",
          "school"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "maintain",
          "maintain"
        ],
        [
          "vigilance",
          "vigilance"
        ]
      ],
      "qualifier": "school slang",
      "raw_glosses": [
        "(British, school slang) To maintain vigilance."
      ],
      "synonyms": [
        {
          "word": "keep a lookout"
        },
        {
          "word": "keep watch"
        }
      ],
      "tags": [
        "British"
      ],
      "wikipedia": [
        "Eton College"
      ]
    }
  ],
  "sounds": [
    {
      "enpr": "kēp kāʹvē"
    },
    {
      "ipa": "/kiːp ˈkeɪvi/"
    }
  ],
  "word": "keep cave"
}

{
  "etymology_text": "Used at Eton College, Berkshire, England. See cave (“look out, beware”).",
  "forms": [
    {
      "form": "keeps cave",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "keeping cave",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "kept cave",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "kept cave",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "keep<,,kept> cave"
      },
      "expansion": "keep cave (third-person singular simple present keeps cave, present participle keeping cave, simple past and past participle kept cave)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "British English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English school slang",
        "English terms with quotations",
        "English verbs",
        "Pages with 1 entry"
      ],
      "examples": [
        {
          "ref": "1899 January, Rudyard Kipling, “An Unsavoury Interlude”, in Stalky & Co., London: Macmillan & Co., published 1899, →OCLC, page 73:",
          "text": "I vote we go down and explore. No one will come up this time o' day. We needn't keep cavé.",
          "type": "quote"
        },
        {
          "ref": "1911, Cosmo Hamilton, “Why Cupid Came to Earl’s Court”, in Short Plays for Small Stages, page 9:",
          "text": "I'll keep cave for ten minutes.",
          "type": "quote"
        },
        {
          "ref": "1912, Ethel Turner, Seven Little Australians, page 154:",
          "text": "Pip was mounting guard at the shed, and had undertaken to get Judy safely away, and Bunty had been stationed on the back verandah to keep cave and whistle three times if there was any danger.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To maintain vigilance."
      ],
      "links": [
        [
          "school",
          "school"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "maintain",
          "maintain"
        ],
        [
          "vigilance",
          "vigilance"
        ]
      ],
      "qualifier": "school slang",
      "raw_glosses": [
        "(British, school slang) To maintain vigilance."
      ],
      "synonyms": [
        {
          "word": "keep a lookout"
        },
        {
          "word": "keep watch"
        }
      ],
      "tags": [
        "British"
      ],
      "wikipedia": [
        "Eton College"
      ]
    }
  ],
  "sounds": [
    {
      "enpr": "kēp kāʹvē"
    },
    {
      "ipa": "/kiːp ˈkeɪvi/"
    }
  ],
  "word": "keep cave"
}