"ничком" meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "ниц"
      },
      "expansion": "ниц (nic)",
      "name": "m"
    },
    {
      "args": {
        "1": "ru",
        "2": "ни́кнуть"
      },
      "expansion": "ни́кнуть (níknutʹ)",
      "name": "m"
    },
    {
      "args": {
        "1": "uk",
        "2": "ни́шком"
      },
      "expansion": "Ukrainian ни́шком (nýškom)",
      "name": "cog"
    },
    {
      "args": {
        "1": "bg",
        "2": "ни́чком"
      },
      "expansion": "Bulgarian ни́чком (níčkom)",
      "name": "cog"
    }
  ],
  "etymology_text": "From ниц (nic), ни́кнуть (níknutʹ). Cognates include Ukrainian ни́шком (nýškom), Bulgarian ни́чком (níčkom).",
  "forms": [
    {
      "form": "ничко́м",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ničkóm",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ничко́м"
      },
      "expansion": "ничко́м • (ničkóm)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "to lie prone",
          "roman": "ležátʹ ničkóm",
          "text": "лежа́ть ничко́м",
          "type": "example"
        }
      ],
      "glosses": [
        "prone, face down"
      ],
      "id": "en-ничком-ru-adv-WX~Y4VzH",
      "links": [
        [
          "prone",
          "prone"
        ]
      ],
      "related": [
        {
          "roman": "návzničʹ",
          "word": "на́взничь"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nʲɪt͡ɕˈkom]"
    }
  ],
  "word": "ничком"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "ниц"
      },
      "expansion": "ниц (nic)",
      "name": "m"
    },
    {
      "args": {
        "1": "ru",
        "2": "ни́кнуть"
      },
      "expansion": "ни́кнуть (níknutʹ)",
      "name": "m"
    },
    {
      "args": {
        "1": "uk",
        "2": "ни́шком"
      },
      "expansion": "Ukrainian ни́шком (nýškom)",
      "name": "cog"
    },
    {
      "args": {
        "1": "bg",
        "2": "ни́чком"
      },
      "expansion": "Bulgarian ни́чком (níčkom)",
      "name": "cog"
    }
  ],
  "etymology_text": "From ниц (nic), ни́кнуть (níknutʹ). Cognates include Ukrainian ни́шком (nýškom), Bulgarian ни́чком (níčkom).",
  "forms": [
    {
      "form": "ничко́м",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ničkóm",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ничко́м"
      },
      "expansion": "ничко́м • (ničkóm)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "related": [
    {
      "roman": "návzničʹ",
      "word": "на́взничь"
    }
  ],
  "senses": [
    {
      "categories": [
        "Russian 2-syllable words",
        "Russian adverbs",
        "Russian entries with incorrect language header",
        "Russian lemmas",
        "Russian terms with IPA pronunciation",
        "Russian terms with usage examples"
      ],
      "examples": [
        {
          "english": "to lie prone",
          "roman": "ležátʹ ničkóm",
          "text": "лежа́ть ничко́м",
          "type": "example"
        }
      ],
      "glosses": [
        "prone, face down"
      ],
      "links": [
        [
          "prone",
          "prone"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nʲɪt͡ɕˈkom]"
    }
  ],
  "word": "ничком"
}