"-ismo" meaning in Esperanto

{
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "suffix"
      },
      "expansion": "-ismo",
      "name": "head"
    }
  ],
  "hyphenation": [
    "is‧mo"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto BRO1",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 8 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "ismo"
        }
      ],
      "glosses": [
        "-ism"
      ],
      "id": "en--ismo-eo-suffix-aIoNbKvq",
      "links": [
        [
          "-ism",
          "-ism"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈismo]"
    },
    {
      "rhymes": "-ismo"
    }
  ],
  "word": "-ismo"
}

{
  "derived": [
    {
      "word": "ismo"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "suffix"
      },
      "expansion": "-ismo",
      "name": "head"
    }
  ],
  "hyphenation": [
    "is‧mo"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Esperanto BRO1",
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto suffixes",
        "Esperanto terms with IPA pronunciation",
        "Esperanto terms with audio pronunciation",
        "Pages using catfix",
        "Pages with 8 entries",
        "Pages with entries",
        "Rhymes:Esperanto/ismo"
      ],
      "glosses": [
        "-ism"
      ],
      "links": [
        [
          "-ism",
          "-ism"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈismo]"
    },
    {
      "rhymes": "-ismo"
    }
  ],
  "word": "-ismo"
}