"forestaff" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fore",
        "3": "staff"
      },
      "expansion": "fore- + staff",
      "name": "prefix"
    }
  ],
  "etymology_text": "From fore- + staff.",
  "forms": [
    {
      "form": "forestaffs",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "forestaves",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "forestaves"
      },
      "expansion": "forestaff (plural forestaffs or forestaves)",
      "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 prefixed with fore-",
          "parents": [],
          "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": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1722, Andrew Wakely, The Mariner's Compass:",
          "text": "with a Forestaff, take the Altitude of the North Star",
          "type": "quote"
        }
      ],
      "glosses": [
        "An instrument formerly used at sea for taking the altitudes of heavenly bodies, later replaced by the sextant."
      ],
      "id": "en-forestaff-en-noun--xDbY8DA",
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "instrument",
          "instrument"
        ],
        [
          "altitude",
          "altitude"
        ],
        [
          "heavenly bodies",
          "heavenly body"
        ],
        [
          "sextant",
          "sextant"
        ]
      ],
      "raw_glosses": [
        "(nautical) An instrument formerly used at sea for taking the altitudes of heavenly bodies, later replaced by the sextant."
      ],
      "synonyms": [
        {
          "word": "cross-staff"
        }
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "word": "forestaff"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fore",
        "3": "staff"
      },
      "expansion": "fore- + staff",
      "name": "prefix"
    }
  ],
  "etymology_text": "From fore- + staff.",
  "forms": [
    {
      "form": "forestaffs",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "forestaves",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "forestaves"
      },
      "expansion": "forestaff (plural forestaffs or forestaves)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms prefixed with fore-",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Nautical"
      ],
      "examples": [
        {
          "ref": "1722, Andrew Wakely, The Mariner's Compass:",
          "text": "with a Forestaff, take the Altitude of the North Star",
          "type": "quote"
        }
      ],
      "glosses": [
        "An instrument formerly used at sea for taking the altitudes of heavenly bodies, later replaced by the sextant."
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "instrument",
          "instrument"
        ],
        [
          "altitude",
          "altitude"
        ],
        [
          "heavenly bodies",
          "heavenly body"
        ],
        [
          "sextant",
          "sextant"
        ]
      ],
      "raw_glosses": [
        "(nautical) An instrument formerly used at sea for taking the altitudes of heavenly bodies, later replaced by the sextant."
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "cross-staff"
    }
  ],
  "word": "forestaff"
}