"A plus" meaning in English

{
  "forms": [
    {
      "form": "A pluses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "A plus (plural A pluses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "93 7",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "89 11",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "87 13",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "97 3",
          "kind": "topical",
          "langcode": "en",
          "name": "Academic grades",
          "orig": "en:Academic grades",
          "parents": [
            "Education",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An academic grade issued by certain educational institutions. Slightly better than an A."
      ],
      "id": "en-A_plus-en-noun-ME6oTUo5",
      "links": [
        [
          "grade",
          "grade"
        ],
        [
          "A",
          "A"
        ]
      ],
      "synonyms": [
        {
          "_dis1": "77 23",
          "word": "A+"
        },
        {
          "_dis1": "77 23",
          "word": "A-plus"
        }
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "text": "I give this novel an A plus."
        }
      ],
      "glosses": [
        "The highest possible rating."
      ],
      "id": "en-A_plus-en-noun-9K4T6Z4A",
      "links": [
        [
          "rating",
          "rating"
        ]
      ],
      "raw_glosses": [
        "(slang) The highest possible rating."
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-A plus.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/73/En-au-A_plus.ogg/En-au-A_plus.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/73/En-au-A_plus.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "A plus"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with audio links",
    "English terms with non-redundant non-automated sortkeys",
    "en:Academic grades"
  ],
  "forms": [
    {
      "form": "A pluses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "A plus (plural A pluses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "An academic grade issued by certain educational institutions. Slightly better than an A."
      ],
      "links": [
        [
          "grade",
          "grade"
        ],
        [
          "A",
          "A"
        ]
      ]
    },
    {
      "categories": [
        "English slang"
      ],
      "examples": [
        {
          "text": "I give this novel an A plus."
        }
      ],
      "glosses": [
        "The highest possible rating."
      ],
      "links": [
        [
          "rating",
          "rating"
        ]
      ],
      "raw_glosses": [
        "(slang) The highest possible rating."
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-A plus.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/73/En-au-A_plus.ogg/En-au-A_plus.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/73/En-au-A_plus.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "synonyms": [
    {
      "word": "A+"
    },
    {
      "word": "A-plus"
    }
  ],
  "word": "A plus"
}