"fall on a grenade" meaning in English

{
  "forms": [
    {
      "form": "falls on a grenade",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "falling on a grenade",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "fell on a grenade",
      "tags": [
        "past"
      ]
    },
    {
      "form": "fallen on a grenade",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fall<,,fell,fallen> on a grenade"
      },
      "expansion": "fall on a grenade (third-person singular simple present falls on a grenade, present participle falling on a grenade, simple past fell on a grenade, past participle fallen on a grenade)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2000, U.S. News & World Report, volume 129, numbers 1-8, page 99",
          "text": "Another longtime Gore adviser says: \"Nobody would fall on a grenade for him. People respect him but don't love him. He just doesn't inspire that kind of loyalty.\"",
          "type": "quotation"
        },
        {
          "ref": "2007, George Pitagorsky, The Zen Approach to Project Management",
          "text": "It is unrealistic in most project settings to expect a team member to “fall on a grenade” to sacrifice his life for the sake of his teammates.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To sacrifice oneself for the sake of others."
      ],
      "id": "en-fall_on_a_grenade-en-verb-MnVXhmK-",
      "links": [
        [
          "sacrifice",
          "sacrifice"
        ]
      ],
      "related": [
        {
          "word": "fall on one's sword"
        },
        {
          "word": "take one for the team"
        }
      ]
    }
  ],
  "word": "fall on a grenade"
}

{
  "forms": [
    {
      "form": "falls on a grenade",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "falling on a grenade",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "fell on a grenade",
      "tags": [
        "past"
      ]
    },
    {
      "form": "fallen on a grenade",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fall<,,fell,fallen> on a grenade"
      },
      "expansion": "fall on a grenade (third-person singular simple present falls on a grenade, present participle falling on a grenade, simple past fell on a grenade, past participle fallen on a grenade)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "fall on one's sword"
    },
    {
      "word": "take one for the team"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "English verbs",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2000, U.S. News & World Report, volume 129, numbers 1-8, page 99",
          "text": "Another longtime Gore adviser says: \"Nobody would fall on a grenade for him. People respect him but don't love him. He just doesn't inspire that kind of loyalty.\"",
          "type": "quotation"
        },
        {
          "ref": "2007, George Pitagorsky, The Zen Approach to Project Management",
          "text": "It is unrealistic in most project settings to expect a team member to “fall on a grenade” to sacrifice his life for the sake of his teammates.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To sacrifice oneself for the sake of others."
      ],
      "links": [
        [
          "sacrifice",
          "sacrifice"
        ]
      ]
    }
  ],
  "word": "fall on a grenade"
}