"keen on" meaning in English

{
  "forms": [
    {
      "form": "more keen on",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most keen on",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "keen on (comparative more keen on, superlative most keen on)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Bulgarian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Scottish Gaelic translations",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "I'm not keen on fish with lots of bones."
        }
      ],
      "glosses": [
        "fond of; appreciative of"
      ],
      "id": "en-keen_on-en-adj-2grDcrh5",
      "links": [
        [
          "fond",
          "fond"
        ],
        [
          "appreciative",
          "appreciative"
        ]
      ],
      "qualifier": "parts of North America",
      "raw_glosses": [
        "(UK, parts of North America) fond of; appreciative of"
      ],
      "tags": [
        "UK"
      ],
      "translations": [
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "padam si",
          "sense": "fond of; appreciative of",
          "word": "падам си"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "fond of; appreciative of",
          "word": "热衷于"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "fond of; appreciative of",
          "word": "kiintynyt"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "fond of; appreciative of",
          "word": "interesować się, lubić"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "interesujuščijsja",
          "sense": "fond of; appreciative of",
          "word": "интересующийся"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "ljubjaščij",
          "sense": "fond of; appreciative of",
          "word": "любящий"
        },
        {
          "code": "gd",
          "lang": "Scottish Gaelic",
          "sense": "fond of; appreciative of",
          "word": "beò-ghlacte le"
        }
      ]
    }
  ],
  "word": "keen on"
}

{
  "forms": [
    {
      "form": "more keen on",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most keen on",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "keen on (comparative more keen on, superlative most keen on)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "British English",
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "Terms with Bulgarian translations",
        "Terms with Finnish translations",
        "Terms with Mandarin translations",
        "Terms with Polish translations",
        "Terms with Russian translations",
        "Terms with Scottish Gaelic translations"
      ],
      "examples": [
        {
          "text": "I'm not keen on fish with lots of bones."
        }
      ],
      "glosses": [
        "fond of; appreciative of"
      ],
      "links": [
        [
          "fond",
          "fond"
        ],
        [
          "appreciative",
          "appreciative"
        ]
      ],
      "qualifier": "parts of North America",
      "raw_glosses": [
        "(UK, parts of North America) fond of; appreciative of"
      ],
      "tags": [
        "UK"
      ]
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "padam si",
      "sense": "fond of; appreciative of",
      "word": "падам си"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "fond of; appreciative of",
      "word": "热衷于"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "fond of; appreciative of",
      "word": "kiintynyt"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "fond of; appreciative of",
      "word": "interesować się, lubić"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "interesujuščijsja",
      "sense": "fond of; appreciative of",
      "word": "интересующийся"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "ljubjaščij",
      "sense": "fond of; appreciative of",
      "word": "любящий"
    },
    {
      "code": "gd",
      "lang": "Scottish Gaelic",
      "sense": "fond of; appreciative of",
      "word": "beò-ghlacte le"
    }
  ],
  "word": "keen on"
}