"OLV" meaning in Dutch

{
  "head_templates": [
    {
      "args": {
        "1": "nl",
        "2": "proper noun"
      },
      "expansion": "OLV",
      "name": "head"
    }
  ],
  "lang": "Dutch",
  "lang_code": "nl",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Our Beloved Lady",
          "word": "Onze Lieve Vrouw"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Dutch entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Dutch entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "nl",
          "name": "Roman Catholicism",
          "orig": "nl:Roman Catholicism",
          "parents": [
            "Catholicism",
            "Christianity",
            "Abrahamism",
            "Religion",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of Onze Lieve Vrouw (“Our Beloved Lady”)."
      ],
      "id": "en-OLV-nl-name-EArF3Lv-",
      "links": [
        [
          "Onze",
          "onze#Dutch"
        ],
        [
          "Lieve",
          "lieve#Dutch"
        ],
        [
          "Vrouw",
          "vrouw#Dutch"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "OLV"
}

{
  "head_templates": [
    {
      "args": {
        "1": "nl",
        "2": "proper noun"
      },
      "expansion": "OLV",
      "name": "head"
    }
  ],
  "lang": "Dutch",
  "lang_code": "nl",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Our Beloved Lady",
          "word": "Onze Lieve Vrouw"
        }
      ],
      "categories": [
        "Dutch entries with incorrect language header",
        "Dutch entries with topic categories using raw markup",
        "Dutch initialisms",
        "Dutch lemmas",
        "Dutch proper nouns",
        "nl:Roman Catholicism"
      ],
      "glosses": [
        "Initialism of Onze Lieve Vrouw (“Our Beloved Lady”)."
      ],
      "links": [
        [
          "Onze",
          "onze#Dutch"
        ],
        [
          "Lieve",
          "lieve#Dutch"
        ],
        [
          "Vrouw",
          "vrouw#Dutch"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "OLV"
}