"app." meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "app.",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "text added to the end of a book or an article",
          "word": "appendix"
        }
      ],
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Law",
          "orig": "en:Law",
          "parents": [
            "Justice",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "89 11",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "85 15",
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Abbreviation of appendix (text added to the end of a book or an article)."
      ],
      "id": "en-app.-en-noun-8WTdccHV",
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "appendix",
          "appendix#English"
        ]
      ],
      "raw_glosses": [
        "(law) Abbreviation of appendix (text added to the end of a book or an article)."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "law"
      ]
    },
    {
      "alt_of": [
        {
          "word": "apprentice"
        }
      ],
      "categories": [],
      "glosses": [
        "Abbreviation of apprentice."
      ],
      "id": "en-app.-en-noun-AbtIoVQl",
      "links": [
        [
          "apprentice",
          "apprentice#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "word": "app."
}

{
  "categories": [
    "English case citation abbreviations",
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with language name categories using raw markup",
    "English lemmas",
    "English nouns",
    "English nouns with unknown or uncertain plurals",
    "English terms spelled with .",
    "English three-letter abbreviations"
  ],
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "app.",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "text added to the end of a book or an article",
          "word": "appendix"
        }
      ],
      "categories": [
        "English abbreviations",
        "en:Law"
      ],
      "glosses": [
        "Abbreviation of appendix (text added to the end of a book or an article)."
      ],
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "appendix",
          "appendix#English"
        ]
      ],
      "raw_glosses": [
        "(law) Abbreviation of appendix (text added to the end of a book or an article)."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "law"
      ]
    },
    {
      "alt_of": [
        {
          "word": "apprentice"
        }
      ],
      "categories": [
        "English abbreviations"
      ],
      "glosses": [
        "Abbreviation of apprentice."
      ],
      "links": [
        [
          "apprentice",
          "apprentice#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "word": "app."
}