"へえ" meaning in Japanese

{
  "forms": [
    {
      "form": "hē",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "へえ",
      "roman": "fee",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "interjection",
        "hhira": "へえ"
      },
      "expansion": "へえ • (hē) ^(←へえ (fee)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "74 26",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "84 16",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "84 16",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "85 15",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Oh, really? I didn't know that."
      ],
      "id": "en-へえ-ja-intj-ljdyQq5e"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Kansai Japanese",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Understood."
      ],
      "id": "en-へえ-ja-intj-M0MooSay",
      "links": [
        [
          "Matsumura, Akira",
          "w:ja:松村明"
        ],
        [
          "大辞林",
          "w:ja:大辞林"
        ],
        [
          "Tōkyō",
          "w:Tōkyō"
        ],
        [
          "Sanseidō",
          "w:Sanseidō"
        ]
      ],
      "raw_glosses": [
        "(chiefly Kansai, feminine) Understood."
      ],
      "tags": [
        "Kansai",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "other": "へえ"
    },
    {
      "ipa": "[he̞ː]"
    }
  ],
  "word": "へえ"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese hiragana",
    "Japanese interjections",
    "Japanese lemmas",
    "Japanese links with redundant alt parameters",
    "Japanese links with redundant wikilinks",
    "Japanese terms with IPA pronunciation",
    "Japanese terms with redundant sortkeys"
  ],
  "forms": [
    {
      "form": "hē",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "へえ",
      "roman": "fee",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "interjection",
        "hhira": "へえ"
      },
      "expansion": "へえ • (hē) ^(←へえ (fee)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "intj",
  "senses": [
    {
      "glosses": [
        "Oh, really? I didn't know that."
      ]
    },
    {
      "categories": [
        "Kansai Japanese"
      ],
      "glosses": [
        "Understood."
      ],
      "links": [
        [
          "Matsumura, Akira",
          "w:ja:松村明"
        ],
        [
          "大辞林",
          "w:ja:大辞林"
        ],
        [
          "Tōkyō",
          "w:Tōkyō"
        ],
        [
          "Sanseidō",
          "w:Sanseidō"
        ]
      ],
      "raw_glosses": [
        "(chiefly Kansai, feminine) Understood."
      ],
      "tags": [
        "Kansai",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "other": "へえ"
    },
    {
      "ipa": "[he̞ː]"
    }
  ],
  "word": "へえ"
}