"すらすら" meaning in Japanese

{
  "forms": [
    {
      "form": "すらすら",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "スラスラ",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "surasura",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "すらすら",
      "roman": "surasura",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "adverb",
        "2": "スラスラ",
        "hhira": "すらすら"
      },
      "expansion": "すらすら or スラスラ • (surasura) ^(←すらすら (surasura)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "adv",
  "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 alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "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 onomatopoeias",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "to become able to speak English smoothly",
          "roman": "Eigo ga surasura hanaseru yō ni naru",
          "ruby": [
            [
              "英",
              "えい"
            ],
            [
              "語",
              "ご"
            ],
            [
              "話",
              "はな"
            ]
          ],
          "text": "英語がスラスラ話せるようになる",
          "type": "example"
        }
      ],
      "glosses": [
        "smoothly"
      ],
      "id": "en-すらすら-ja-adv-zk95LhZT",
      "links": [
        [
          "onomatopoeia",
          "onomatopoeia"
        ],
        [
          "smoothly",
          "smoothly"
        ]
      ],
      "raw_glosses": [
        "(onomatopoeia) smoothly"
      ],
      "tags": [
        "onomatopoeic"
      ]
    }
  ],
  "sounds": [
    {
      "other": "すらすら"
    },
    {
      "ipa": "[sɨɾa̠sɨɾa̠]"
    }
  ],
  "word": "すらすら"
}

{
  "forms": [
    {
      "form": "すらすら",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "スラスラ",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "surasura",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "すらすら",
      "roman": "surasura",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "adverb",
        "2": "スラスラ",
        "hhira": "すらすら"
      },
      "expansion": "すらすら or スラスラ • (surasura) ^(←すらすら (surasura)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Japanese adverbs",
        "Japanese entries with incorrect language header",
        "Japanese hiragana",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese onomatopoeias",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "to become able to speak English smoothly",
          "roman": "Eigo ga surasura hanaseru yō ni naru",
          "ruby": [
            [
              "英",
              "えい"
            ],
            [
              "語",
              "ご"
            ],
            [
              "話",
              "はな"
            ]
          ],
          "text": "英語がスラスラ話せるようになる",
          "type": "example"
        }
      ],
      "glosses": [
        "smoothly"
      ],
      "links": [
        [
          "onomatopoeia",
          "onomatopoeia"
        ],
        [
          "smoothly",
          "smoothly"
        ]
      ],
      "raw_glosses": [
        "(onomatopoeia) smoothly"
      ],
      "tags": [
        "onomatopoeic"
      ]
    }
  ],
  "sounds": [
    {
      "other": "すらすら"
    },
    {
      "ipa": "[sɨɾa̠sɨɾa̠]"
    }
  ],
  "word": "すらすら"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "すらすら"
  ],
  "section": "Japanese",
  "subsection": "adverb",
  "title": "すらすら",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "すらすら"
  ],
  "section": "Japanese",
  "subsection": "adverb",
  "title": "すらすら",
  "trace": ""
}