"hog cistern" meaning in English

{
  "forms": [
    {
      "form": "hog cisterns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hog cistern (plural hog cisterns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "East Anglian 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": "Essex English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Kentish English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Vessels",
          "orig": "en:Vessels",
          "parents": [
            "Containers",
            "Liquids",
            "Tools",
            "Matter",
            "Technology",
            "Chemistry",
            "Nature",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A trough for pigs from which to eat."
      ],
      "id": "en-hog_cistern-en-noun-jX1ISo0C",
      "links": [
        [
          "trough",
          "trough"
        ],
        [
          "pig",
          "pig"
        ],
        [
          "eat",
          "eat"
        ]
      ],
      "raw_glosses": [
        "(now rare, East Anglia, Essex, Kent) A trough for pigs from which to eat."
      ],
      "synonyms": [
        {
          "tags": [
            "Midlands",
            "South"
          ],
          "word": "hog loom"
        },
        {
          "tags": [
            "US",
            "especially"
          ],
          "word": "hog-tub"
        },
        {
          "word": "hog-cistern"
        }
      ],
      "tags": [
        "East-Anglia",
        "Essex",
        "Kent",
        "archaic"
      ]
    }
  ],
  "word": "hog cistern"
}

{
  "forms": [
    {
      "form": "hog cisterns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hog cistern (plural hog cisterns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "East Anglian English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English rare terms",
        "Essex English",
        "Kentish English",
        "en:Vessels"
      ],
      "glosses": [
        "A trough for pigs from which to eat."
      ],
      "links": [
        [
          "trough",
          "trough"
        ],
        [
          "pig",
          "pig"
        ],
        [
          "eat",
          "eat"
        ]
      ],
      "raw_glosses": [
        "(now rare, East Anglia, Essex, Kent) A trough for pigs from which to eat."
      ],
      "synonyms": [
        {
          "tags": [
            "Midlands",
            "South"
          ],
          "word": "hog loom"
        },
        {
          "tags": [
            "US",
            "especially"
          ],
          "word": "hog-tub"
        }
      ],
      "tags": [
        "East-Anglia",
        "Essex",
        "Kent",
        "archaic"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "hog-cistern"
    }
  ],
  "word": "hog cistern"
}