"であう" meaning in Japanese

{
  "forms": [
    {
      "form": "deau",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "であう • (deau)",
      "name": "ja-verb"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese verbs without transitivity",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "出会う: to meet by chance"
      ],
      "id": "en-であう-ja-verb-zyLFyf9M",
      "links": [
        [
          "出会う",
          "出会う#Japanese"
        ]
      ]
    }
  ],
  "word": "であう"
}

{
  "forms": [
    {
      "form": "deau",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "であう • (deau)",
      "name": "ja-verb"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese hiragana",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese terms with redundant sortkeys",
        "Japanese verbs",
        "Japanese verbs without transitivity"
      ],
      "glosses": [
        "出会う: to meet by chance"
      ],
      "links": [
        [
          "出会う",
          "出会う#Japanese"
        ]
      ]
    }
  ],
  "word": "であう"
}