"tumble on" meaning in English

{
  "forms": [
    {
      "form": "tumbles on",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "tumbling on",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "tumbled on",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "tumbled on",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "tumble on (third-person singular simple present tumbles on, present participle tumbling on, simple past and past participle tumbled on)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs formed with \"on\"",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1897, H[erbert] G[eorge] Wells, “chapter 17”, in The Invisible Man: A Grotesque Romance, New York, N.Y., London: Harper & Brothers Publishers, →OCLC, page 148:",
          "text": "“I’m luck to have fallen upon you, Kemp. You must help me. Fancy tumbling on you just now! I’m in a devilish scrape […]”",
          "type": "quote"
        },
        {
          "ref": "1910, Edith Wharton, “The Bolted Door”, in Tales of Men and Ghosts, New York: Scribner, page 69:",
          "text": "“He murdered the man all right. I tumbled on the truth by the merest accident, when I’d pretty nearly chucked the whole job.”",
          "type": "quote"
        },
        {
          "text": "1931, E. Phillips Oppenheim, “What Sir Stephen Forgot” in Sinners Beware, Boston: Little, Brown & Co., 1932, p. 158, (first published as “In the Strongroom” in Collier’s Weekly, 11 April, 1931),\n“If it isn’t Peter Hames?” he cried. “God bless my soul! They told us over in New York that you were living in these parts, but to tumble on you like this! Why, we only landed here two minutes ago. I call this fine.”"
        }
      ],
      "glosses": [
        "To accidentally encounter (a person or situation)."
      ],
      "id": "en-tumble_on-en-verb-Jl2BaE2Q",
      "links": [
        [
          "accidentally",
          "accidentally"
        ],
        [
          "encounter",
          "encounter"
        ]
      ],
      "raw_glosses": [
        "(transitive, idiomatic) To accidentally encounter (a person or situation)."
      ],
      "synonyms": [
        {
          "word": "chance upon"
        },
        {
          "word": "happen upon"
        },
        {
          "word": "stumble across"
        }
      ],
      "tags": [
        "idiomatic",
        "transitive"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-tumble on.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/fc/En-au-tumble_on.ogg/En-au-tumble_on.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/f/fc/En-au-tumble_on.ogg"
    }
  ],
  "word": "tumble on"
}

{
  "forms": [
    {
      "form": "tumbles on",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "tumbling on",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "tumbled on",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "tumbled on",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "tumble on (third-person singular simple present tumbles on, present participle tumbling on, simple past and past participle tumbled on)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"on\"",
        "English terms with quotations",
        "English transitive verbs",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1897, H[erbert] G[eorge] Wells, “chapter 17”, in The Invisible Man: A Grotesque Romance, New York, N.Y., London: Harper & Brothers Publishers, →OCLC, page 148:",
          "text": "“I’m luck to have fallen upon you, Kemp. You must help me. Fancy tumbling on you just now! I’m in a devilish scrape […]”",
          "type": "quote"
        },
        {
          "ref": "1910, Edith Wharton, “The Bolted Door”, in Tales of Men and Ghosts, New York: Scribner, page 69:",
          "text": "“He murdered the man all right. I tumbled on the truth by the merest accident, when I’d pretty nearly chucked the whole job.”",
          "type": "quote"
        },
        {
          "text": "1931, E. Phillips Oppenheim, “What Sir Stephen Forgot” in Sinners Beware, Boston: Little, Brown & Co., 1932, p. 158, (first published as “In the Strongroom” in Collier’s Weekly, 11 April, 1931),\n“If it isn’t Peter Hames?” he cried. “God bless my soul! They told us over in New York that you were living in these parts, but to tumble on you like this! Why, we only landed here two minutes ago. I call this fine.”"
        }
      ],
      "glosses": [
        "To accidentally encounter (a person or situation)."
      ],
      "links": [
        [
          "accidentally",
          "accidentally"
        ],
        [
          "encounter",
          "encounter"
        ]
      ],
      "raw_glosses": [
        "(transitive, idiomatic) To accidentally encounter (a person or situation)."
      ],
      "tags": [
        "idiomatic",
        "transitive"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-tumble on.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/fc/En-au-tumble_on.ogg/En-au-tumble_on.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/f/fc/En-au-tumble_on.ogg"
    }
  ],
  "synonyms": [
    {
      "word": "chance upon"
    },
    {
      "word": "happen upon"
    },
    {
      "word": "stumble across"
    }
  ],
  "word": "tumble on"
}