"to the gunwales" meaning in English

{
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      "expansion": "to the gunwales",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "to the gunnels"
        }
      ],
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      "examples": [
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          "ref": "2023 March 8, Howard Johnston, “Was Marples the real railway wrecker?”, in RAIL, number 978, page 51:",
          "text": "Brand new diesel multiple units might seem attractive, but they could not reduce operational costs sufficiently on their own, even if they were packed to the gunwales some of the time.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of to the gunnels."
      ],
      "id": "en-to_the_gunwales-en-prep_phrase-OcAXVcsB",
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        [
          "to the gunnels",
          "to the gunnels#English"
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    }
  ],
  "word": "to the gunwales"
}

{
  "head_templates": [
    {
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        "2": "prepositional phrase"
      },
      "expansion": "to the gunwales",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "to the gunnels"
        }
      ],
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        "English lemmas",
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        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2023 March 8, Howard Johnston, “Was Marples the real railway wrecker?”, in RAIL, number 978, page 51:",
          "text": "Brand new diesel multiple units might seem attractive, but they could not reduce operational costs sufficiently on their own, even if they were packed to the gunwales some of the time.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of to the gunnels."
      ],
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          "to the gunnels",
          "to the gunnels#English"
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  ],
  "word": "to the gunwales"
}