"tau" meaning in French

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "tauique"
    }
  ],
  "forms": [
    {
      "form": "tau",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "taus",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#",
        "3": "s"
      },
      "expansion": "tau m (plural tau or taus)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "62 38",
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "86 14",
          "kind": "topical",
          "langcode": "fr",
          "name": "Greek letter names",
          "orig": "fr:Greek letter names",
          "parents": [
            "Letter names",
            "Letters, symbols, and punctuation",
            "Names",
            "Orthography",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Writing",
            "Fundamental",
            "Nouns",
            "Human behaviour",
            "Language",
            "Lemmas",
            "Human",
            "Communication"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "tau (Greek letter)"
      ],
      "id": "en-tau-fr-noun-rFckVKpx",
      "links": [
        [
          "tau",
          "tau#English"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Subatomic particles",
          "orig": "fr:Subatomic particles",
          "parents": [
            "Matter",
            "Particle physics",
            "Chemistry",
            "Nature",
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "tau, tauon"
      ],
      "id": "en-tau-fr-noun-Ad8eC1C7",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "tau",
          "tau#English"
        ],
        [
          "tauon",
          "tauon"
        ]
      ],
      "raw_glosses": [
        "(physics) tau, tauon"
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/to/"
    },
    {
      "homophone": "taus"
    },
    {
      "homophone": "taux"
    },
    {
      "homophone": "tôt"
    },
    {
      "audio": "Fr-Paris--tau.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/dd/Fr-Paris--tau.ogg/Fr-Paris--tau.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/d/dd/Fr-Paris--tau.ogg",
      "tags": [
        "Paris"
      ],
      "text": "Audio (Paris)"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "tags": [
        "in-plural"
      ],
      "word": "taus (1990 spelling reform)"
    }
  ],
  "word": "tau"
}

{
  "categories": [
    "French 1-syllable words",
    "French countable nouns",
    "French entries with incorrect language header",
    "French lemmas",
    "French masculine nouns",
    "French nouns",
    "French nouns with plural in -aus",
    "French terms with IPA pronunciation",
    "French terms with audio links",
    "French terms with homophones",
    "Pages with raw sortkeys",
    "fr:Greek letter names"
  ],
  "derived": [
    {
      "word": "tauique"
    }
  ],
  "forms": [
    {
      "form": "tau",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "taus",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#",
        "3": "s"
      },
      "expansion": "tau m (plural tau or taus)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "tau (Greek letter)"
      ],
      "links": [
        [
          "tau",
          "tau#English"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "categories": [
        "fr:Subatomic particles"
      ],
      "glosses": [
        "tau, tauon"
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "tau",
          "tau#English"
        ],
        [
          "tauon",
          "tauon"
        ]
      ],
      "raw_glosses": [
        "(physics) tau, tauon"
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/to/"
    },
    {
      "homophone": "taus"
    },
    {
      "homophone": "taux"
    },
    {
      "homophone": "tôt"
    },
    {
      "audio": "Fr-Paris--tau.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/dd/Fr-Paris--tau.ogg/Fr-Paris--tau.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/d/dd/Fr-Paris--tau.ogg",
      "tags": [
        "Paris"
      ],
      "text": "Audio (Paris)"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "in-plural"
      ],
      "word": "taus (1990 spelling reform)"
    }
  ],
  "word": "tau"
}