"erstens" meaning in German

{
  "etymology_templates": [
    {
      "args": {
        "1": "de",
        "2": "erste",
        "3": "-ens"
      },
      "expansion": "erste + -ens",
      "name": "af"
    }
  ],
  "etymology_text": "erste + -ens",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "adverb",
        "3": "",
        "4": "",
        "5": "",
        "6": "am {{{2}}}",
        "head": "",
        "sort": ""
      },
      "expansion": "erstens",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "erstens",
      "name": "de-adv"
    }
  ],
  "hyphenation": [
    "ers‧tens"
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "German entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "German terms suffixed with -ens",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "de",
          "name": "One",
          "orig": "de:One",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "achtens"
        },
        {
          "word": "dreizehntens"
        },
        {
          "word": "drittens"
        },
        {
          "word": "elftens"
        },
        {
          "word": "fünftens"
        },
        {
          "word": "fünfzehntens"
        },
        {
          "word": "neuntens"
        },
        {
          "word": "sechstens"
        },
        {
          "word": "siebtens"
        },
        {
          "word": "viertens"
        },
        {
          "word": "vierzehntens"
        },
        {
          "word": "zehntens"
        },
        {
          "word": "zweitens"
        },
        {
          "word": "zwölftens"
        }
      ],
      "glosses": [
        "first, firstly, in the first place"
      ],
      "id": "en-erstens-de-adv-fUJXslPb",
      "links": [
        [
          "first",
          "first"
        ],
        [
          "firstly",
          "firstly"
        ],
        [
          "in the first place",
          "in the first place"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈeːɐ̯stns/"
    },
    {
      "audio": "De-erstens.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/78/De-erstens.ogg/De-erstens.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/78/De-erstens.ogg",
      "text": "Audio"
    }
  ],
  "word": "erstens"
}

{
  "coordinate_terms": [
    {
      "word": "achtens"
    },
    {
      "word": "dreizehntens"
    },
    {
      "word": "drittens"
    },
    {
      "word": "elftens"
    },
    {
      "word": "fünftens"
    },
    {
      "word": "fünfzehntens"
    },
    {
      "word": "neuntens"
    },
    {
      "word": "sechstens"
    },
    {
      "word": "siebtens"
    },
    {
      "word": "viertens"
    },
    {
      "word": "vierzehntens"
    },
    {
      "word": "zehntens"
    },
    {
      "word": "zweitens"
    },
    {
      "word": "zwölftens"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "de",
        "2": "erste",
        "3": "-ens"
      },
      "expansion": "erste + -ens",
      "name": "af"
    }
  ],
  "etymology_text": "erste + -ens",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "adverb",
        "3": "",
        "4": "",
        "5": "",
        "6": "am {{{2}}}",
        "head": "",
        "sort": ""
      },
      "expansion": "erstens",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "erstens",
      "name": "de-adv"
    }
  ],
  "hyphenation": [
    "ers‧tens"
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "German 1-syllable words",
        "German adverbs",
        "German entries with incorrect language header",
        "German lemmas",
        "German sequence adverbs",
        "German terms suffixed with -ens",
        "German terms with IPA pronunciation",
        "German terms with audio links",
        "de:One"
      ],
      "glosses": [
        "first, firstly, in the first place"
      ],
      "links": [
        [
          "first",
          "first"
        ],
        [
          "firstly",
          "firstly"
        ],
        [
          "in the first place",
          "in the first place"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈeːɐ̯stns/"
    },
    {
      "audio": "De-erstens.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/78/De-erstens.ogg/De-erstens.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/78/De-erstens.ogg",
      "text": "Audio"
    }
  ],
  "word": "erstens"
}