"muchísima" meaning in Español

{
  "categories": [
    {
      "kind": "other",
      "name": "ES:Palabras esdrújulas",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "ES:Palabras tetrasílabas",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "ES:Rimas:i.si.ma",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Español",
      "parents": [],
      "source": "w"
    }
  ],
  "extra_sounds": {
    "acentuación": "esdrújula",
    "longitud silábica": "tetrasílaba"
  },
  "hyphenation": "mu-chí-si-ma",
  "lang": "Español",
  "lang_code": "es",
  "pos": "adj",
  "pos_title": "forma adjetiva",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "ES:Formas adjetivas en femenino",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "ES:Formas adjetivas en superlativo",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "muchísimo"
        }
      ],
      "glosses": [
        "Forma del femenino de muchísimo, superlativo de mucho."
      ],
      "id": "es-muchísima-es-adj-ZueaSd1A",
      "sense_index": "1"
    }
  ],
  "sounds": [
    {
      "ipa": "[muˈʧi.si.ma]"
    },
    {
      "rhymes": "i.si.ma"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "muchísima"
}

{
  "categories": [
    "ES:Palabras esdrújulas",
    "ES:Palabras tetrasílabas",
    "ES:Rimas:i.si.ma",
    "Español"
  ],
  "extra_sounds": {
    "acentuación": "esdrújula",
    "longitud silábica": "tetrasílaba"
  },
  "hyphenation": "mu-chí-si-ma",
  "lang": "Español",
  "lang_code": "es",
  "pos": "adj",
  "pos_title": "forma adjetiva",
  "senses": [
    {
      "categories": [
        "ES:Formas adjetivas en femenino",
        "ES:Formas adjetivas en superlativo"
      ],
      "form_of": [
        {
          "word": "muchísimo"
        }
      ],
      "glosses": [
        "Forma del femenino de muchísimo, superlativo de mucho."
      ],
      "sense_index": "1"
    }
  ],
  "sounds": [
    {
      "ipa": "[muˈʧi.si.ma]"
    },
    {
      "rhymes": "i.si.ma"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "muchísima"
}