"tilt fan" meaning in English

{
  "forms": [
    {
      "form": "tilt fans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tilt fan (plural tilt fans)",
      "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 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aircraft",
          "orig": "en:Aircraft",
          "parents": [
            "Aviation",
            "Technology",
            "Aeronautics",
            "Transport",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Aircraft in which a propeller or fan can be used in a horizontal position for vertical takeoff or landing (VTOL) and then rotated for forward movement."
      ],
      "id": "en-tilt_fan-en-noun-u5cyXUT-",
      "links": [
        [
          "VTOL",
          "VTOL"
        ]
      ],
      "synonyms": [
        {
          "word": "tiltfan"
        },
        {
          "word": "tilt-fan"
        }
      ]
    }
  ],
  "word": "tilt fan"
}

{
  "forms": [
    {
      "form": "tilt fans",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tilt fan (plural tilt fans)",
      "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",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Aircraft"
      ],
      "glosses": [
        "Aircraft in which a propeller or fan can be used in a horizontal position for vertical takeoff or landing (VTOL) and then rotated for forward movement."
      ],
      "links": [
        [
          "VTOL",
          "VTOL"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "tiltfan"
    },
    {
      "word": "tilt-fan"
    }
  ],
  "word": "tilt fan"
}