"agua tónica" meaning in Spanish

{
  "forms": [
    {
      "form": "aguas tónicas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "agua tónica f (plural aguas tónicas)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "es",
          "name": "Beverages",
          "orig": "es:Beverages",
          "parents": [
            "Drinking",
            "Food and drink",
            "Liquids",
            "Human behaviour",
            "All topics",
            "Matter",
            "Human",
            "Fundamental",
            "Chemistry",
            "Nature",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "tonic water (carbonated beverage)"
      ],
      "id": "en-agua_tónica-es-noun-rcGD43AR",
      "links": [
        [
          "tonic water",
          "tonic water"
        ]
      ],
      "synonyms": [
        {
          "word": "tónica"
        },
        {
          "word": "aguaquina"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "agua tónica"
}

{
  "forms": [
    {
      "form": "aguas tónicas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "agua tónica f (plural aguas tónicas)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish feminine nouns",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish nouns",
        "es:Beverages"
      ],
      "glosses": [
        "tonic water (carbonated beverage)"
      ],
      "links": [
        [
          "tonic water",
          "tonic water"
        ]
      ],
      "synonyms": [
        {
          "word": "tónica"
        },
        {
          "word": "aguaquina"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "agua tónica"
}