"slave away" meaning in English

{
  "forms": [
    {
      "form": "slaves away",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "slaving away",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "slaved away",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "slaved away",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "slave away (third-person singular simple present slaves away, present participle slaving away, simple past and past participle slaved away)",
      "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 with particle (away)",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1999, Elizabeth Berger, Raising Kids with Character: Developing Trust and Personal Integrity in Children, Rowman & Littlefield, published 2004, page 107",
          "text": "Rochelle is a perfectionistic, timid, dutiful girl, and she has been slaving away for hours on her math.",
          "type": "quotation"
        },
        {
          "ref": "2006, M. Keith Booker, Alternate Americas: Science Fiction Film and American Culture, Praegar, published 2006, page 255",
          "text": "Thomas Anderson works at what is presumably a moderately well paying middle-class professional job, but his life as a computer programmer for a large corporation, slaving away in a tiny cubicle in a high-rise office building, seems seems mind-numbingly boring and routine.",
          "type": "quotation"
        },
        {
          "ref": "2010, Rachel Saunders, The Blue Chair Jam Cookbook, Andrews McMeel, published 2010",
          "text": "I slaved away in my tiny kitchen, gradually developing my own techniques in my quest for perfect results.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To work very hard."
      ],
      "id": "en-slave_away-en-verb-G2CpYKDx",
      "links": [
        [
          "work",
          "work"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To work very hard."
      ],
      "tags": [
        "intransitive"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "to work hard",
          "word": "raataa"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "to work hard",
          "word": "trimer"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "to work hard",
          "word": "sich abrackern"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "to work hard",
          "word": "schuften"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "to work hard",
          "word": "sgobbare"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "to work hard",
          "word": "esclavizarse"
        }
      ]
    }
  ],
  "word": "slave away"
}

{
  "forms": [
    {
      "form": "slaves away",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "slaving away",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "slaved away",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "slaved away",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "slave away (third-person singular simple present slaves away, present participle slaving away, simple past and past participle slaved away)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English intransitive verbs",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs with particle (away)",
        "English terms with quotations",
        "English verbs"
      ],
      "examples": [
        {
          "ref": "1999, Elizabeth Berger, Raising Kids with Character: Developing Trust and Personal Integrity in Children, Rowman & Littlefield, published 2004, page 107",
          "text": "Rochelle is a perfectionistic, timid, dutiful girl, and she has been slaving away for hours on her math.",
          "type": "quotation"
        },
        {
          "ref": "2006, M. Keith Booker, Alternate Americas: Science Fiction Film and American Culture, Praegar, published 2006, page 255",
          "text": "Thomas Anderson works at what is presumably a moderately well paying middle-class professional job, but his life as a computer programmer for a large corporation, slaving away in a tiny cubicle in a high-rise office building, seems seems mind-numbingly boring and routine.",
          "type": "quotation"
        },
        {
          "ref": "2010, Rachel Saunders, The Blue Chair Jam Cookbook, Andrews McMeel, published 2010",
          "text": "I slaved away in my tiny kitchen, gradually developing my own techniques in my quest for perfect results.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To work very hard."
      ],
      "links": [
        [
          "work",
          "work"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To work very hard."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "to work hard",
      "word": "raataa"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "to work hard",
      "word": "trimer"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "to work hard",
      "word": "sich abrackern"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "to work hard",
      "word": "schuften"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "to work hard",
      "word": "sgobbare"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "to work hard",
      "word": "esclavizarse"
    }
  ],
  "word": "slave away"
}