"ailan" meaning in Tok Pisin

{
  "etymology_templates": [
    {
      "args": {
        "1": "tpi",
        "2": "en",
        "3": "island"
      },
      "expansion": "English island",
      "name": "der"
    }
  ],
  "etymology_text": "From English island.",
  "head_templates": [
    {
      "args": {
        "1": "tpi",
        "2": "noun"
      },
      "expansion": "ailan",
      "name": "head"
    }
  ],
  "lang": "Tok Pisin",
  "lang_code": "tpi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Tok Pisin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tok Pisin entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "tpi",
          "name": "Geography",
          "orig": "tpi:Geography",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "island"
      ],
      "id": "en-ailan-tpi-noun-KM0sXBXR",
      "links": [
        [
          "island",
          "island"
        ]
      ]
    }
  ],
  "word": "ailan"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "tpi",
        "2": "en",
        "3": "island"
      },
      "expansion": "English island",
      "name": "der"
    }
  ],
  "etymology_text": "From English island.",
  "head_templates": [
    {
      "args": {
        "1": "tpi",
        "2": "noun"
      },
      "expansion": "ailan",
      "name": "head"
    }
  ],
  "lang": "Tok Pisin",
  "lang_code": "tpi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Tok Pisin entries with incorrect language header",
        "Tok Pisin entries with topic categories using raw markup",
        "Tok Pisin lemmas",
        "Tok Pisin nouns",
        "Tok Pisin terms derived from English",
        "tpi:Geography"
      ],
      "glosses": [
        "island"
      ],
      "links": [
        [
          "island",
          "island"
        ]
      ]
    }
  ],
  "word": "ailan"
}