"sottochiave" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "sotto",
        "3": "chiave"
      },
      "expansion": "sotto- + chiave",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sotto- + chiave.",
  "head_templates": [
    {
      "args": {},
      "expansion": "sottochiave",
      "name": "it-adv"
    }
  ],
  "hyphenation": [
    "sot‧to‧chià‧ve"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian terms prefixed with sotto-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "under lock and key"
      ],
      "id": "en-sottochiave-it-adv-h5chnTf7",
      "links": [
        [
          "under lock and key",
          "under lock and key"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sot.toˈkja.ve/"
    },
    {
      "rhymes": "-ave"
    }
  ],
  "word": "sottochiave"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "sotto",
        "3": "chiave"
      },
      "expansion": "sotto- + chiave",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sotto- + chiave.",
  "head_templates": [
    {
      "args": {},
      "expansion": "sottochiave",
      "name": "it-adv"
    }
  ],
  "hyphenation": [
    "sot‧to‧chià‧ve"
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Italian 4-syllable words",
        "Italian adverbs",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian terms prefixed with sotto-",
        "Italian terms with IPA pronunciation",
        "Rhymes:Italian/ave",
        "Rhymes:Italian/ave/4 syllables"
      ],
      "glosses": [
        "under lock and key"
      ],
      "links": [
        [
          "under lock and key",
          "under lock and key"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sot.toˈkja.ve/"
    },
    {
      "rhymes": "-ave"
    }
  ],
  "word": "sottochiave"
}