"swear on" meaning in English

{
  "forms": [
    {
      "form": "swears on",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "swearing on",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "swore on",
      "tags": [
        "past"
      ]
    },
    {
      "form": "sworn on",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "swear<,,swore,sworn> on"
      },
      "expansion": "swear on (third-person singular simple present swears on, present participle swearing on, simple past swore on, past participle sworn on)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "swear upon"
        }
      ],
      "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": "English terms with collocations",
          "parents": [
            "Terms with collocations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "swear on a stack",
          "word": "swear on a stack of Bibles"
        }
      ],
      "examples": [
        {
          "text": "swear on (someone's) grave [especially one's mother's grave]",
          "type": "example"
        },
        {
          "text": "swear on (someone's) life [especially one's own or one's mother's life]",
          "type": "example"
        }
      ],
      "glosses": [
        "Alternative form of swear upon"
      ],
      "id": "en-swear_on-en-verb-er61eEqm",
      "links": [
        [
          "swear upon",
          "swear upon#English"
        ]
      ],
      "related": [
        {
          "word": "by God"
        },
        {
          "word": "by the rood"
        }
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "swear on"
}

{
  "derived": [
    {
      "english": "swear on a stack",
      "word": "swear on a stack of Bibles"
    }
  ],
  "forms": [
    {
      "form": "swears on",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "swearing on",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "swore on",
      "tags": [
        "past"
      ]
    },
    {
      "form": "sworn on",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "swear<,,swore,sworn> on"
      },
      "expansion": "swear on (third-person singular simple present swears on, present participle swearing on, simple past swore on, past participle sworn on)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "by God"
    },
    {
      "word": "by the rood"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "swear upon"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"on\"",
        "English terms with collocations",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "swear on (someone's) grave [especially one's mother's grave]",
          "type": "example"
        },
        {
          "text": "swear on (someone's) life [especially one's own or one's mother's life]",
          "type": "example"
        }
      ],
      "glosses": [
        "Alternative form of swear upon"
      ],
      "links": [
        [
          "swear upon",
          "swear upon#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "swear on"
}