"treinta y uno" meaning in Spanish

{
  "forms": [
    {
      "form": "treinta y una",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "before a noun treinta y un",
      "tags": [
        "masculine"
      ]
    }
  ],
  "hyphenation": [
    "trein‧ta"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Spanish cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "thirty-one"
      ],
      "id": "en-treinta_y_uno-es-num-36XExH-y",
      "links": [
        [
          "thirty-one",
          "thirty-one"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌtɾeinta i ˈuno/"
    },
    {
      "ipa": "[ˌt̪ɾẽĩn̪.t̪a i ˈu.no]"
    },
    {
      "ipa": "/ˌtɾenta i ˈuno/"
    },
    {
      "ipa": "[ˌt̪ɾẽn̪.t̪a i ˈu.no]"
    }
  ],
  "word": "treinta y uno"
}

{
  "forms": [
    {
      "form": "treinta y una",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "before a noun treinta y un",
      "tags": [
        "masculine"
      ]
    }
  ],
  "hyphenation": [
    "trein‧ta"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Spanish cardinal numbers",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish links with redundant alt parameters",
        "Spanish multiword terms",
        "Spanish numerals",
        "Spanish numerals with red links in their headword lines",
        "Spanish terms with IPA pronunciation"
      ],
      "glosses": [
        "thirty-one"
      ],
      "links": [
        [
          "thirty-one",
          "thirty-one"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌtɾeinta i ˈuno/"
    },
    {
      "ipa": "[ˌt̪ɾẽĩn̪.t̪a i ˈu.no]"
    },
    {
      "ipa": "/ˌtɾenta i ˈuno/"
    },
    {
      "ipa": "[ˌt̪ɾẽn̪.t̪a i ˈu.no]"
    }
  ],
  "word": "treinta y uno"
}