"si" meaning in Spanish

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "la",
        "3": "si",
        "4": "",
        "5": "if"
      },
      "expansion": "Latin si (“if”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin si (“if”).",
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "conjunctions"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "hyphenation": [
    "si"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "apenas si"
        },
        {
          "word": "como si"
        },
        {
          "word": "cual si"
        },
        {
          "word": "por si"
        },
        {
          "word": "que si"
        },
        {
          "word": "si bien"
        },
        {
          "word": "si Dios lo quiere"
        },
        {
          "word": "si la mirada matara"
        },
        {
          "word": "si lo sabré yo"
        },
        {
          "word": "si mal no recuerdo"
        },
        {
          "word": "si me apuras"
        },
        {
          "word": "si no"
        },
        {
          "word": "si no quieres caldo, taza y media"
        },
        {
          "word": "si quisiera Dios"
        },
        {
          "word": "si tan siquiera"
        },
        {
          "word": "si y solo si"
        },
        {
          "word": "si ya"
        }
      ],
      "glosses": [
        "if"
      ],
      "id": "en-si-es-conj-k19oMZ1P",
      "links": [
        [
          "if",
          "if"
        ]
      ],
      "related": [
        {
          "word": "sí"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/si/"
    },
    {
      "ipa": "[si]"
    },
    {
      "rhymes": "-i"
    },
    {
      "homophone": "sí"
    }
  ],
  "word": "si"
}

{
  "categories": [
    "zom:Bodily fluids"
  ],
  "derived": [
    {
      "word": "apenas si"
    },
    {
      "word": "como si"
    },
    {
      "word": "cual si"
    },
    {
      "word": "por si"
    },
    {
      "word": "que si"
    },
    {
      "word": "si bien"
    },
    {
      "word": "si Dios lo quiere"
    },
    {
      "word": "si la mirada matara"
    },
    {
      "word": "si lo sabré yo"
    },
    {
      "word": "si mal no recuerdo"
    },
    {
      "word": "si me apuras"
    },
    {
      "word": "si no"
    },
    {
      "word": "si no quieres caldo, taza y media"
    },
    {
      "word": "si quisiera Dios"
    },
    {
      "word": "si tan siquiera"
    },
    {
      "word": "si y solo si"
    },
    {
      "word": "si ya"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "la",
        "3": "si",
        "4": "",
        "5": "if"
      },
      "expansion": "Latin si (“if”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin si (“if”).",
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "conjunctions"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "hyphenation": [
    "si"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "conj",
  "related": [
    {
      "word": "sí"
    }
  ],
  "senses": [
    {
      "categories": [
        "Rhymes:Spanish/i",
        "Rhymes:Spanish/i/1 syllable",
        "Spanish 1-syllable words",
        "Spanish conjunctions",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish terms derived from Latin",
        "Spanish terms inherited from Latin",
        "Spanish terms with IPA pronunciation",
        "Spanish terms with audio links",
        "Spanish terms with homophones"
      ],
      "glosses": [
        "if"
      ],
      "links": [
        [
          "if",
          "if"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/si/"
    },
    {
      "ipa": "[si]"
    },
    {
      "rhymes": "-i"
    },
    {
      "homophone": "sí"
    }
  ],
  "word": "si"
}