"aven" meaning in Breton

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "xbm",
        "3": "avon"
      },
      "expansion": "Middle Breton avon",
      "name": "inh"
    },
    {
      "args": {
        "1": "br",
        "2": "cel-bry-pro",
        "3": "*aβon",
        "4": "",
        "5": "river"
      },
      "expansion": "Proto-Brythonic *aβon (“river”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle Breton avon, from Proto-Brythonic *aβon (“river”).",
  "forms": [
    {
      "form": "avenioù",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "noun",
        "3": "plural",
        "4": "avenioù",
        "g": "f"
      },
      "expansion": "aven f (plural avenioù)",
      "name": "head"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Breton entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "br",
          "name": "Bodies of water",
          "orig": "br:Bodies of water",
          "parents": [
            "Landforms",
            "Water",
            "Earth",
            "Places",
            "Liquids",
            "Nature",
            "Names",
            "Matter",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Chemistry",
            "Fundamental",
            "Nouns",
            "Sciences",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "br",
          "name": "Landforms",
          "orig": "br:Landforms",
          "parents": [
            "Earth",
            "Places",
            "Nature",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "river"
      ],
      "id": "en-aven-br-noun-X1qO2PE5",
      "links": [
        [
          "river",
          "river"
        ]
      ],
      "raw_glosses": [
        "(archaic) river"
      ],
      "synonyms": [
        {
          "word": "avon"
        }
      ],
      "tags": [
        "archaic",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɑː.ven/"
    }
  ],
  "word": "aven"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "br",
        "2": "xbm",
        "3": "avon"
      },
      "expansion": "Middle Breton avon",
      "name": "inh"
    },
    {
      "args": {
        "1": "br",
        "2": "cel-bry-pro",
        "3": "*aβon",
        "4": "",
        "5": "river"
      },
      "expansion": "Proto-Brythonic *aβon (“river”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Middle Breton avon, from Proto-Brythonic *aβon (“river”).",
  "forms": [
    {
      "form": "avenioù",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "br",
        "2": "noun",
        "3": "plural",
        "4": "avenioù",
        "g": "f"
      },
      "expansion": "aven f (plural avenioù)",
      "name": "head"
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Breton entries with incorrect language header",
        "Breton feminine nouns",
        "Breton lemmas",
        "Breton nouns",
        "Breton terms derived from Middle Breton",
        "Breton terms derived from Proto-Brythonic",
        "Breton terms inherited from Middle Breton",
        "Breton terms inherited from Proto-Brythonic",
        "Breton terms with IPA pronunciation",
        "Breton terms with archaic senses",
        "br:Bodies of water",
        "br:Landforms"
      ],
      "glosses": [
        "river"
      ],
      "links": [
        [
          "river",
          "river"
        ]
      ],
      "raw_glosses": [
        "(archaic) river"
      ],
      "tags": [
        "archaic",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɑː.ven/"
    }
  ],
  "synonyms": [
    {
      "word": "avon"
    }
  ],
  "word": "aven"
}