"alguien" meaning in Spanish

{
  "antonyms": [
    {
      "word": "nadie"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "alguno"
      },
      "expansion": "alguno",
      "name": "m"
    },
    {
      "args": {
        "1": "es",
        "2": "quien"
      },
      "expansion": "quien",
      "name": "m"
    },
    {
      "args": {
        "1": "es",
        "2": "la",
        "3": "aliquis",
        "4": "aliquem"
      },
      "expansion": "Latin aliquem",
      "name": "inh"
    },
    {
      "args": {
        "1": "es",
        "2": "",
        "3": "*algue"
      },
      "expansion": "*algue",
      "name": "m"
    }
  ],
  "etymology_text": "From alguno, conflated with quien. Derivation from Latin aliquem, is incorrect, the expected form would have been *algue.",
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "pronoun"
      },
      "expansion": "alguien",
      "name": "head"
    }
  ],
  "hyphenation": [
    "al‧guien"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "_dis": "100 0",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "74 26",
          "kind": "other",
          "name": "Spanish indefinite pronouns",
          "parents": [
            "Indefinite pronouns",
            "Indefinite pro-forms",
            "Pronouns",
            "Pro-forms",
            "Lemmas",
            "Terms by semantic function"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "71 29",
          "kind": "other",
          "name": "Spanish pronouns",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "someone, somebody"
      ],
      "id": "en-alguien-es-pron-0GYSbXYJ",
      "links": [
        [
          "someone",
          "someone"
        ],
        [
          "somebody",
          "somebody"
        ]
      ]
    },
    {
      "glosses": [
        "anyone, anybody"
      ],
      "id": "en-alguien-es-pron-GSaCyDCO",
      "links": [
        [
          "anyone",
          "anyone"
        ],
        [
          "anybody",
          "anybody"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈalɡjen/"
    },
    {
      "ipa": "[ˈal.ɣ̞jẽn]"
    },
    {
      "rhymes": "-alɡjen"
    }
  ],
  "word": "alguien"
}

{
  "antonyms": [
    {
      "word": "nadie"
    }
  ],
  "categories": [
    "Rhymes:Spanish/alɡjen",
    "Rhymes:Spanish/alɡjen/2 syllables",
    "Spanish 2-syllable words",
    "Spanish entries with incorrect language header",
    "Spanish indefinite pronouns",
    "Spanish lemmas",
    "Spanish pronouns",
    "Spanish terms derived from Latin",
    "Spanish terms inherited from Latin",
    "Spanish terms with IPA pronunciation",
    "Spanish terms with audio links"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "alguno"
      },
      "expansion": "alguno",
      "name": "m"
    },
    {
      "args": {
        "1": "es",
        "2": "quien"
      },
      "expansion": "quien",
      "name": "m"
    },
    {
      "args": {
        "1": "es",
        "2": "la",
        "3": "aliquis",
        "4": "aliquem"
      },
      "expansion": "Latin aliquem",
      "name": "inh"
    },
    {
      "args": {
        "1": "es",
        "2": "",
        "3": "*algue"
      },
      "expansion": "*algue",
      "name": "m"
    }
  ],
  "etymology_text": "From alguno, conflated with quien. Derivation from Latin aliquem, is incorrect, the expected form would have been *algue.",
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "pronoun"
      },
      "expansion": "alguien",
      "name": "head"
    }
  ],
  "hyphenation": [
    "al‧guien"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "pron",
  "senses": [
    {
      "glosses": [
        "someone, somebody"
      ],
      "links": [
        [
          "someone",
          "someone"
        ],
        [
          "somebody",
          "somebody"
        ]
      ]
    },
    {
      "glosses": [
        "anyone, anybody"
      ],
      "links": [
        [
          "anyone",
          "anyone"
        ],
        [
          "anybody",
          "anybody"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈalɡjen/"
    },
    {
      "ipa": "[ˈal.ɣ̞jẽn]"
    },
    {
      "rhymes": "-alɡjen"
    }
  ],
  "word": "alguien"
}