"au clair" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "au clair",
      "name": "fr-prep phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "to have a clear understanding of something",
          "text": "être au clair sur quelque chose",
          "type": "example"
        },
        {
          "english": "to be clear in one's mind, to know what one wants",
          "text": "avoir les idées claires, être au clair avec soi-même",
          "type": "example"
        }
      ],
      "glosses": [
        "clear (free of doubt, who has understood the situation clearly)"
      ],
      "id": "en-au_clair-fr-prep_phrase-oq30n2Tw",
      "info_templates": [
        {
          "args": {
            "1": "fr",
            "2": ":sur/:avec<about something>"
          },
          "expansion": "[with sur or avec ‘about something’]",
          "extra_data": {
            "words": [
              "sur",
              "avec",
              "‘about",
              "something’"
            ]
          },
          "name": "+obj"
        }
      ],
      "links": [
        [
          "clear",
          "clear"
        ]
      ],
      "raw_glosses": [
        "(of a person) clear (free of doubt, who has understood the situation clearly) [with sur or avec ‘about something’]"
      ],
      "raw_tags": [
        "of a person"
      ],
      "related": [
        {
          "word": "mettre au clair"
        },
        {
          "word": "sabre au clair"
        },
        {
          "word": "tirer au clair"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/o klɛʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-WikiLucas00-au clair.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/97/LL-Q150_%28fra%29-WikiLucas00-au_clair.wav/LL-Q150_%28fra%29-WikiLucas00-au_clair.wav.mp3",
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    }
  ],
  "word": "au clair"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "au clair",
      "name": "fr-prep phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prep_phrase",
  "related": [
    {
      "word": "mettre au clair"
    },
    {
      "word": "sabre au clair"
    },
    {
      "word": "tirer au clair"
    }
  ],
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French lemmas",
        "French multiword terms",
        "French prepositional phrases",
        "French terms with IPA pronunciation",
        "French terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "to have a clear understanding of something",
          "text": "être au clair sur quelque chose",
          "type": "example"
        },
        {
          "english": "to be clear in one's mind, to know what one wants",
          "text": "avoir les idées claires, être au clair avec soi-même",
          "type": "example"
        }
      ],
      "glosses": [
        "clear (free of doubt, who has understood the situation clearly)"
      ],
      "info_templates": [
        {
          "args": {
            "1": "fr",
            "2": ":sur/:avec<about something>"
          },
          "expansion": "[with sur or avec ‘about something’]",
          "extra_data": {
            "words": [
              "sur",
              "avec",
              "‘about",
              "something’"
            ]
          },
          "name": "+obj"
        }
      ],
      "links": [
        [
          "clear",
          "clear"
        ]
      ],
      "raw_glosses": [
        "(of a person) clear (free of doubt, who has understood the situation clearly) [with sur or avec ‘about something’]"
      ],
      "raw_tags": [
        "of a person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/o klɛʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-WikiLucas00-au clair.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/97/LL-Q150_%28fra%29-WikiLucas00-au_clair.wav/LL-Q150_%28fra%29-WikiLucas00-au_clair.wav.mp3",
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    }
  ],
  "word": "au clair"
}