"clue up" meaning in English

{
  "forms": [
    {
      "form": "clues up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "cluing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "clueing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "clued up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "clued up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*",
        "pres_ptc2": "clueing up"
      },
      "expansion": "clue up (third-person singular simple present clues up, present participle cluing up or clueing up, simple past and past participle clued up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "text": "We've been cluing up all week, so we'll be ready.",
          "type": "example"
        }
      ],
      "glosses": [
        "To become knowledgeable on a subject."
      ],
      "id": "en-clue_up-en-verb-FnISB8QY",
      "links": [
        [
          "knowledgeable",
          "knowledgeable"
        ],
        [
          "subject",
          "subject"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To become knowledgeable on a subject."
      ],
      "tags": [
        "intransitive"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "text": "That summer course really clued me up on mathematics.",
          "type": "example"
        }
      ],
      "glosses": [
        "To make knowledgeable on a subject."
      ],
      "id": "en-clue_up-en-verb-5EMDhbVB",
      "qualifier": "passive voice",
      "raw_glosses": [
        "(transitive, passive voice) To make knowledgeable on a subject."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "17 17 67",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "17 17 66",
          "kind": "other",
          "name": "English phrasal verbs formed with \"up\"",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 20 61",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "10 10 81",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Synonym of clew"
      ],
      "id": "en-clue_up-en-verb-7L7vvK1E",
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "clew",
          "clew#English"
        ]
      ],
      "raw_glosses": [
        "(nautical, transitive) Synonym of clew"
      ],
      "related": [
        {
          "_dis1": "11 11 78",
          "word": "clued up"
        }
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "clew"
        }
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "word": "clue up"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English phrasal verbs",
    "English phrasal verbs formed with \"up\"",
    "English verbs",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "clues up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "cluing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "clueing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "clued up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "clued up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*",
        "pres_ptc2": "clueing up"
      },
      "expansion": "clue up (third-person singular simple present clues up, present participle cluing up or clueing up, simple past and past participle clued up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "clued up"
    }
  ],
  "senses": [
    {
      "categories": [
        "English intransitive verbs",
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "We've been cluing up all week, so we'll be ready.",
          "type": "example"
        }
      ],
      "glosses": [
        "To become knowledgeable on a subject."
      ],
      "links": [
        [
          "knowledgeable",
          "knowledgeable"
        ],
        [
          "subject",
          "subject"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To become knowledgeable on a subject."
      ],
      "tags": [
        "intransitive"
      ]
    },
    {
      "categories": [
        "English terms with usage examples",
        "English transitive verbs"
      ],
      "examples": [
        {
          "text": "That summer course really clued me up on mathematics.",
          "type": "example"
        }
      ],
      "glosses": [
        "To make knowledgeable on a subject."
      ],
      "qualifier": "passive voice",
      "raw_glosses": [
        "(transitive, passive voice) To make knowledgeable on a subject."
      ],
      "tags": [
        "transitive"
      ]
    },
    {
      "categories": [
        "English transitive verbs",
        "en:Nautical"
      ],
      "glosses": [
        "Synonym of clew"
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "clew",
          "clew#English"
        ]
      ],
      "raw_glosses": [
        "(nautical, transitive) Synonym of clew"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "clew"
        }
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "word": "clue up"
}