"refresher course" meaning in All languages combined

{
  "forms": [
    {
      "form": "refresher courses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "refresher course (plural refresher courses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1962 October, M. J. Wilson, “Three years of dieselisation at Devons Road depot”, in Modern Railways, page 264",
          "text": "Another example of the quality of staff is the percentage of passes achieved by firemen after a refresher course of one week on driving steam locomotives—until recently a necessary qualification for a diesel driver, even within a fully dieselised scheme.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A short course of additional training or updating knowledge of one's profession."
      ],
      "id": "en-refresher_course-en-noun-BL31TR3d"
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɔː(ɹ)s"
    }
  ],
  "word": "refresher course"
}

{
  "forms": [
    {
      "form": "refresher courses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "refresher course (plural refresher courses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Rhymes:English/ɔː(ɹ)s",
        "Rhymes:English/ɔː(ɹ)s/4 syllables"
      ],
      "examples": [
        {
          "ref": "1962 October, M. J. Wilson, “Three years of dieselisation at Devons Road depot”, in Modern Railways, page 264",
          "text": "Another example of the quality of staff is the percentage of passes achieved by firemen after a refresher course of one week on driving steam locomotives—until recently a necessary qualification for a diesel driver, even within a fully dieselised scheme.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A short course of additional training or updating knowledge of one's profession."
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɔː(ɹ)s"
    }
  ],
  "word": "refresher course"
}