"opt." meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "opt.",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "optative"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Grammar",
          "orig": "en:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of optative."
      ],
      "id": "en-opt.-en-noun-O1E5axjJ",
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "optative",
          "optative#English"
        ]
      ],
      "raw_glosses": [
        "(grammar) Abbreviation of optative."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "opt."
}

{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "opt.",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "optative"
        }
      ],
      "categories": [
        "English 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",
        "en:Grammar"
      ],
      "glosses": [
        "Abbreviation of optative."
      ],
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "optative",
          "optative#English"
        ]
      ],
      "raw_glosses": [
        "(grammar) Abbreviation of optative."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "opt."
}