"наб." meaning in Russian

{
  "forms": [
    {
      "form": "nab.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "наб. • (nab.) f inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "náberežnaja, “embankment”",
          "word": "на́бережная"
        }
      ],
      "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"
        }
      ],
      "glosses": [
        "abbreviation of на́бережная (náberežnaja, “embankment”)"
      ],
      "id": "en-наб.-ru-noun-lwuzQ3Mv",
      "links": [
        [
          "на́бережная",
          "набережная#Russian"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ]
    }
  ],
  "word": "наб."
}

{
  "forms": [
    {
      "form": "nab.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "наб. • (nab.) f inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "náberežnaja, “embankment”",
          "word": "на́бережная"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian abbreviations",
        "Russian entries with incorrect language header",
        "Russian feminine nouns",
        "Russian inanimate nouns",
        "Russian indeclinable nouns",
        "Russian lemmas",
        "Russian nouns",
        "Russian terms spelled with .",
        "Russian terms with redundant head parameter"
      ],
      "glosses": [
        "abbreviation of на́бережная (náberežnaja, “embankment”)"
      ],
      "links": [
        [
          "на́бережная",
          "набережная#Russian"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ]
    }
  ],
  "word": "наб."
}