"jump starter" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "jump-start",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "jump-start + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From jump-start + -er.",
  "forms": [
    {
      "form": "jump starters",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "jumpstarter",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "jump-starter",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jump starter (plural jump starters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "One who or that which jumpstarts."
      ],
      "id": "en-jump_starter-en-noun-TpAwzxrZ",
      "links": [
        [
          "jumpstart",
          "jump-start"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Automotive parts",
          "orig": "en:Automotive parts",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "28 72",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
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        {
          "_dis": "33 67",
          "kind": "other",
          "name": "English terms suffixed with -er (agent noun)",
          "parents": [],
          "source": "w+disamb"
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          "_dis": "27 73",
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          "_dis": "23 77",
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          "_dis": "19 81",
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          "name": "Terms with German translations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An instrument carried around to replenish a depleted car battery."
      ],
      "id": "en-jump_starter-en-noun-DzX5PUN5",
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "car battery",
          "car battery"
        ]
      ],
      "synonyms": [
        {
          "word": "jump box"
        }
      ],
      "translations": [
        {
          "_dis1": "0 100",
          "code": "fi",
          "lang": "Finnish",
          "lang_code": "fi",
          "sense": "instrument",
          "word": "apukäynnistin"
        },
        {
          "_dis1": "0 100",
          "code": "de",
          "lang": "German",
          "lang_code": "de",
          "sense": "instrument",
          "tags": [
            "neuter"
          ],
          "word": "Starthilfegerät"
        }
      ]
    }
  ],
  "word": "jump starter"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms suffixed with -er (agent noun)",
    "Entries with translation boxes",
    "Pages with 1 entry",
    "Pages with entries",
    "Terms with Finnish translations",
    "Terms with German translations"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "jump-start",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "jump-start + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From jump-start + -er.",
  "forms": [
    {
      "form": "jump starters",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "jumpstarter",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "jump-starter",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jump starter (plural jump starters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "One who or that which jumpstarts."
      ],
      "links": [
        [
          "jumpstart",
          "jump-start"
        ]
      ]
    },
    {
      "categories": [
        "en:Automotive parts"
      ],
      "glosses": [
        "An instrument carried around to replenish a depleted car battery."
      ],
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "car battery",
          "car battery"
        ]
      ],
      "synonyms": [
        {
          "word": "jump box"
        }
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "lang_code": "fi",
      "sense": "instrument",
      "word": "apukäynnistin"
    },
    {
      "code": "de",
      "lang": "German",
      "lang_code": "de",
      "sense": "instrument",
      "tags": [
        "neuter"
      ],
      "word": "Starthilfegerät"
    }
  ],
  "word": "jump starter"
}