"seinen" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ja",
        "3": "青年",
        "tr": "seinen"
      },
      "expansion": "Japanese 青年 (seinen)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Japanese 青年 (seinen).",
  "forms": [
    {
      "form": "seinen",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "seinen"
      },
      "expansion": "seinen (plural seinen)",
      "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": "Pages with 5 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "33 41 1 1 20 1 3",
          "kind": "other",
          "name": "Pages with 5 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "33 41 1 1 21 1 2",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 25 8 15 14 10 12",
          "kind": "other",
          "name": "West Frisian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A kind of manga written for an older male audience, generally 18-30 years old (and older)."
      ],
      "id": "en-seinen-en-noun-bvk2oL7Z",
      "links": [
        [
          "manga",
          "manga"
        ]
      ],
      "wikipedia": [
        "seinen"
      ]
    }
  ],
  "word": "seinen"
}

{
  "categories": [
    "Pages with 5 entries",
    "Pages with entries",
    "West Frisian entries with incorrect language header",
    "West Frisian non-lemma forms",
    "West Frisian noun forms"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ja",
        "3": "青年",
        "tr": "seinen"
      },
      "expansion": "Japanese 青年 (seinen)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from Japanese 青年 (seinen).",
  "forms": [
    {
      "form": "seinen",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "seinen"
      },
      "expansion": "seinen (plural seinen)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English indeclinable nouns",
        "English lemmas",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms borrowed from Japanese",
        "English terms derived from Japanese",
        "Pages with 5 entries",
        "Pages with entries"
      ],
      "glosses": [
        "A kind of manga written for an older male audience, generally 18-30 years old (and older)."
      ],
      "links": [
        [
          "manga",
          "manga"
        ]
      ],
      "wikipedia": [
        "seinen"
      ]
    }
  ],
  "word": "seinen"
}