"first-timer" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "first time",
        "3": "er",
        "id2": "measurement"
      },
      "expansion": "first time + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From first time + -er.",
  "forms": [
    {
      "form": "first-timers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "first-timer (plural first-timers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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 terms suffixed with -er (measurement)",
          "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 Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "a person engaging in any activity for the first time"
      ],
      "id": "en-first-timer-en-noun-pB7cJQ-q",
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "a person engaging in any activity for the first time",
          "word": "ensikertalainen"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "a person engaging in any activity for the first time",
          "tags": [
            "masculine"
          ],
          "word": "początkujący"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "a person engaging in any activity for the first time",
          "tags": [
            "masculine"
          ],
          "word": "nowicjusz"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "a person engaging in any activity for the first time",
          "tags": [
            "informal",
            "masculine"
          ],
          "word": "marinheiro de primeira viagem"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "a person engaging in any activity for the first time",
          "tags": [
            "feminine",
            "informal"
          ],
          "word": "marinheira de primeira viagem"
        }
      ]
    }
  ],
  "word": "first-timer"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "first time",
        "3": "er",
        "id2": "measurement"
      },
      "expansion": "first time + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From first time + -er.",
  "forms": [
    {
      "form": "first-timers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "first-timer (plural first-timers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms suffixed with -er (measurement)",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Polish translations",
        "Terms with Portuguese translations"
      ],
      "glosses": [
        "a person engaging in any activity for the first time"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "a person engaging in any activity for the first time",
      "word": "ensikertalainen"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "a person engaging in any activity for the first time",
      "tags": [
        "masculine"
      ],
      "word": "początkujący"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "a person engaging in any activity for the first time",
      "tags": [
        "masculine"
      ],
      "word": "nowicjusz"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "a person engaging in any activity for the first time",
      "tags": [
        "informal",
        "masculine"
      ],
      "word": "marinheiro de primeira viagem"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "a person engaging in any activity for the first time",
      "tags": [
        "feminine",
        "informal"
      ],
      "word": "marinheira de primeira viagem"
    }
  ],
  "word": "first-timer"
}