"уст." meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "устаре́вший"
      },
      "expansion": "Abbreviation of устаре́вший (ustarévšij)",
      "name": "abbrev"
    }
  ],
  "etymology_text": "Abbreviation of устаре́вший (ustarévšij).",
  "forms": [
    {
      "form": "ust.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "уст.",
        "indecl": "1"
      },
      "expansion": "уст. • (ust.) (indeclinable)",
      "name": "ru-adj"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "ustarévšij, “obsolete, antiquated”",
          "word": "устаре́вший"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ru",
          "name": "Linguistics",
          "orig": "ru:Linguistics",
          "parents": [
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "abbreviation of устаре́вший (ustarévšij, “obsolete, antiquated”)"
      ],
      "id": "en-уст.-ru-adj-kzw76NvO",
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "устаре́вший",
          "устаревший#Russian"
        ],
        [
          "obsolete",
          "obsolete"
        ],
        [
          "antiquated",
          "antiquated"
        ]
      ],
      "raw_glosses": [
        "(linguistics) abbreviation of устаре́вший (ustarévšij, “obsolete, antiquated”)"
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "уст."
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "устаре́вший"
      },
      "expansion": "Abbreviation of устаре́вший (ustarévšij)",
      "name": "abbrev"
    }
  ],
  "etymology_text": "Abbreviation of устаре́вший (ustarévšij).",
  "forms": [
    {
      "form": "ust.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "уст.",
        "indecl": "1"
      },
      "expansion": "уст. • (ust.) (indeclinable)",
      "name": "ru-adj"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "ustarévšij, “obsolete, antiquated”",
          "word": "устаре́вший"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian abbreviations",
        "Russian adjectives",
        "Russian entries with incorrect language header",
        "Russian indeclinable adjectives",
        "Russian lemmas",
        "Russian terms spelled with .",
        "Russian terms with redundant head parameter",
        "ru:Linguistics"
      ],
      "glosses": [
        "abbreviation of устаре́вший (ustarévšij, “obsolete, antiquated”)"
      ],
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "устаре́вший",
          "устаревший#Russian"
        ],
        [
          "obsolete",
          "obsolete"
        ],
        [
          "antiquated",
          "antiquated"
        ]
      ],
      "raw_glosses": [
        "(linguistics) abbreviation of устаре́вший (ustarévšij, “obsolete, antiquated”)"
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "уст."
}