"A*" meaning in English

{
  "forms": [
    {
      "form": "A*'s",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "A*s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~",
        "2": "A*'s",
        "3": "s",
        "head": "A*"
      },
      "expansion": "A* (countable and uncountable, plural A*'s or A*s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0",
      "word": "A+"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "_dis": "98 2",
          "kind": "other",
          "langcode": "en",
          "name": "Academic grades",
          "orig": "en:Academic grades",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An academic grade, higher than A or A+. Where it is used, it is often the best class of result."
      ],
      "id": "en-A*-en-noun-XygkCQfr",
      "links": [
        [
          "academic",
          "academic"
        ],
        [
          "grade",
          "grade"
        ],
        [
          "A",
          "A"
        ],
        [
          "A+",
          "A+"
        ],
        [
          "best",
          "best"
        ],
        [
          "class",
          "class"
        ],
        [
          "result",
          "result"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Computer science",
          "orig": "en:Computer science",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "24 76",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 83",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A best-first graph search algorithm for finding a lowest-cost path to a goal."
      ],
      "id": "en-A*-en-noun-9RAuh2gz",
      "links": [
        [
          "computer science",
          "computer science"
        ],
        [
          "graph",
          "graph"
        ],
        [
          "search",
          "search"
        ],
        [
          "algorithm",
          "algorithm"
        ]
      ],
      "raw_glosses": [
        "(computer science, uncountable) A best-first graph search algorithm for finding a lowest-cost path to a goal."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "computer",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "science",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/eɪ̯ stɑː/"
    },
    {
      "audio": "en-us-a-star.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/5/55/En-us-a-star.ogg/En-us-a-star.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/5/55/En-us-a-star.ogg"
    }
  ],
  "wikipedia": [
    "A* search algorithm"
  ],
  "word": "A*"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English terms spelled with *",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Academic grades"
  ],
  "forms": [
    {
      "form": "A*'s",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "A*s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~",
        "2": "A*'s",
        "3": "s",
        "head": "A*"
      },
      "expansion": "A* (countable and uncountable, plural A*'s or A*s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "A+"
    }
  ],
  "senses": [
    {
      "glosses": [
        "An academic grade, higher than A or A+. Where it is used, it is often the best class of result."
      ],
      "links": [
        [
          "academic",
          "academic"
        ],
        [
          "grade",
          "grade"
        ],
        [
          "A",
          "A"
        ],
        [
          "A+",
          "A+"
        ],
        [
          "best",
          "best"
        ],
        [
          "class",
          "class"
        ],
        [
          "result",
          "result"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [
        "English uncountable nouns",
        "en:Computer science"
      ],
      "glosses": [
        "A best-first graph search algorithm for finding a lowest-cost path to a goal."
      ],
      "links": [
        [
          "computer science",
          "computer science"
        ],
        [
          "graph",
          "graph"
        ],
        [
          "search",
          "search"
        ],
        [
          "algorithm",
          "algorithm"
        ]
      ],
      "raw_glosses": [
        "(computer science, uncountable) A best-first graph search algorithm for finding a lowest-cost path to a goal."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "computer",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "science",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/eɪ̯ stɑː/"
    },
    {
      "audio": "en-us-a-star.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/5/55/En-us-a-star.ogg/En-us-a-star.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/5/55/En-us-a-star.ogg"
    }
  ],
  "wikipedia": [
    "A* search algorithm"
  ],
  "word": "A*"
}