"Ab" meaning in Français

{
  "anagrams": [
    {
      "word": "B.A."
    },
    {
      "word": "BA"
    },
    {
      "word": "Ba"
    },
    {
      "word": "Bâ"
    },
    {
      "word": "ba"
    },
    {
      "word": "bâ’"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Abréviations en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Symboles en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "(XXᵉ siècle) (Abréviation) de albite."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "symbol",
  "pos_title": "Symbole",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de la minéralogie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Abréviation usuelle pour l'albite."
      ],
      "id": "fr-Ab-fr-symbol-Xp6cha0b",
      "topics": [
        "mineralogy"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\al.bit\\"
    }
  ],
  "word": "Ab"
}

{
  "anagrams": [
    {
      "word": "B.A."
    },
    {
      "word": "BA"
    },
    {
      "word": "Ba"
    },
    {
      "word": "Bâ"
    },
    {
      "word": "ba"
    },
    {
      "word": "bâ’"
    }
  ],
  "categories": [
    "Abréviations en français",
    "Symboles en français",
    "français"
  ],
  "etymology_texts": [
    "(XXᵉ siècle) (Abréviation) de albite."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "symbol",
  "pos_title": "Symbole",
  "senses": [
    {
      "categories": [
        "Lexique en français de la minéralogie"
      ],
      "glosses": [
        "Abréviation usuelle pour l'albite."
      ],
      "topics": [
        "mineralogy"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\al.bit\\"
    }
  ],
  "word": "Ab"
}