"head of navigation" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "head of navigation",
      "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": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall, dam or lock."
      ],
      "id": "en-head_of_navigation-en-noun-S3PQztln",
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "river",
          "river"
        ],
        [
          "ship",
          "ship"
        ],
        [
          "waterfall",
          "waterfall"
        ],
        [
          "dam",
          "dam"
        ],
        [
          "lock",
          "lock"
        ]
      ],
      "raw_glosses": [
        "(nautical) The farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall, dam or lock."
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "word": "head of navigation"
}

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "head of navigation",
      "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",
        "English nouns with unknown or uncertain plurals",
        "en:Nautical"
      ],
      "glosses": [
        "The farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall, dam or lock."
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "river",
          "river"
        ],
        [
          "ship",
          "ship"
        ],
        [
          "waterfall",
          "waterfall"
        ],
        [
          "dam",
          "dam"
        ],
        [
          "lock",
          "lock"
        ]
      ],
      "raw_glosses": [
        "(nautical) The farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall, dam or lock."
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "word": "head of navigation"
}