"ardu" meaning in French

{
  "antonyms": [
    {
      "word": "aisé"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "la",
        "3": "arduus",
        "4": "",
        "5": "high, steep; difficult"
      },
      "expansion": "Latin arduus (“high, steep; difficult”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Latin arduus (“high, steep; difficult”).",
  "forms": [
    {
      "form": "ardue",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "ardus",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "ardues",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ardu (feminine ardue, masculine plural ardus, feminine plural ardues)",
      "name": "fr-adj"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "steep (of a near-vertical gradient)"
      ],
      "id": "en-ardu-fr-adj-ANCbsoKB",
      "links": [
        [
          "steep",
          "steep"
        ]
      ],
      "raw_glosses": [
        "(literally) steep (of a near-vertical gradient)"
      ],
      "synonyms": [
        {
          "word": "escarpé"
        }
      ],
      "tags": [
        "literally"
      ]
    },
    {
      "categories": [
        {
          "_dis": "15 85",
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "French undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "arduous, needing or using up much energy, difficult"
      ],
      "id": "en-ardu-fr-adj-d-DI~11X",
      "links": [
        [
          "arduous",
          "arduous"
        ],
        [
          "difficult",
          "difficult"
        ]
      ],
      "raw_glosses": [
        "(figuratively) arduous, needing or using up much energy, difficult"
      ],
      "synonyms": [
        {
          "word": "difficile"
        },
        {
          "word": "pénible"
        }
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/aʁ.dy/"
    },
    {
      "audio": "LL-Q150 (fra)-LoquaxFR-ardu.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/70/LL-Q150_%28fra%29-LoquaxFR-ardu.wav/LL-Q150_%28fra%29-LoquaxFR-ardu.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/70/LL-Q150_%28fra%29-LoquaxFR-ardu.wav/LL-Q150_%28fra%29-LoquaxFR-ardu.wav.ogg"
    }
  ],
  "word": "ardu"
}

{
  "antonyms": [
    {
      "word": "aisé"
    }
  ],
  "categories": [
    "French 2-syllable words",
    "French adjectives",
    "French entries with incorrect language header",
    "French lemmas",
    "French terms derived from Latin",
    "French terms with IPA pronunciation",
    "French undefined derivations",
    "Old Irish adjective forms",
    "Old Irish entries with incorrect language header",
    "Old Irish non-lemma forms",
    "Pages with 8 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "la",
        "3": "arduus",
        "4": "",
        "5": "high, steep; difficult"
      },
      "expansion": "Latin arduus (“high, steep; difficult”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Latin arduus (“high, steep; difficult”).",
  "forms": [
    {
      "form": "ardue",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "ardus",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "ardues",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ardu (feminine ardue, masculine plural ardus, feminine plural ardues)",
      "name": "fr-adj"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "steep (of a near-vertical gradient)"
      ],
      "links": [
        [
          "steep",
          "steep"
        ]
      ],
      "raw_glosses": [
        "(literally) steep (of a near-vertical gradient)"
      ],
      "synonyms": [
        {
          "word": "escarpé"
        }
      ],
      "tags": [
        "literally"
      ]
    },
    {
      "glosses": [
        "arduous, needing or using up much energy, difficult"
      ],
      "links": [
        [
          "arduous",
          "arduous"
        ],
        [
          "difficult",
          "difficult"
        ]
      ],
      "raw_glosses": [
        "(figuratively) arduous, needing or using up much energy, difficult"
      ],
      "synonyms": [
        {
          "word": "difficile"
        },
        {
          "word": "pénible"
        }
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/aʁ.dy/"
    },
    {
      "audio": "LL-Q150 (fra)-LoquaxFR-ardu.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/70/LL-Q150_%28fra%29-LoquaxFR-ardu.wav/LL-Q150_%28fra%29-LoquaxFR-ardu.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/70/LL-Q150_%28fra%29-LoquaxFR-ardu.wav/LL-Q150_%28fra%29-LoquaxFR-ardu.wav.ogg"
    }
  ],
  "word": "ardu"
}