"leftism" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "left",
        "3": "ism"
      },
      "expansion": "left + -ism",
      "name": "suffix"
    }
  ],
  "etymology_text": "From left + -ism.",
  "forms": [
    {
      "form": "leftisms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "leftism (countable and uncountable, plural leftisms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ism",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
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          "name": "Pages with entries",
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          "source": "w"
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        {
          "kind": "other",
          "name": "Terms with Azerbaijani translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Bulgarian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Leftism",
          "orig": "en:Leftism",
          "parents": [
            "Ideologies",
            "Politics",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "anarcho-leftism"
        },
        {
          "word": "Islamo-leftism"
        },
        {
          "word": "regressive leftism"
        }
      ],
      "glosses": [
        "Belief in the principles of left-wing politics."
      ],
      "id": "en-leftism-en-noun-FqbWM7K5",
      "links": [
        [
          "principle",
          "principle"
        ],
        [
          "left-wing",
          "left-wing"
        ],
        [
          "politics",
          "politics"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "translations": [
        {
          "code": "az",
          "lang": "Azerbaijani",
          "sense": "belief",
          "word": "solçuluq"
        },
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "levičarstvo",
          "sense": "belief",
          "word": "левичарство"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "belief",
          "word": "vasemmistolaisuus"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "belief",
          "tags": [
            "masculine"
          ],
          "word": "izquierdismo"
        }
      ],
      "wikipedia": [
        "leftism"
      ]
    }
  ],
  "word": "leftism"
}

{
  "derived": [
    {
      "word": "anarcho-leftism"
    },
    {
      "word": "Islamo-leftism"
    },
    {
      "word": "regressive leftism"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "left",
        "3": "ism"
      },
      "expansion": "left + -ism",
      "name": "suffix"
    }
  ],
  "etymology_text": "From left + -ism.",
  "forms": [
    {
      "form": "leftisms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "leftism (countable and uncountable, plural leftisms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
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        "English uncountable nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Azerbaijani translations",
        "Terms with Bulgarian translations",
        "Terms with Finnish translations",
        "Terms with Spanish translations",
        "en:Leftism"
      ],
      "glosses": [
        "Belief in the principles of left-wing politics."
      ],
      "links": [
        [
          "principle",
          "principle"
        ],
        [
          "left-wing",
          "left-wing"
        ],
        [
          "politics",
          "politics"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
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      "wikipedia": [
        "leftism"
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  ],
  "translations": [
    {
      "code": "az",
      "lang": "Azerbaijani",
      "sense": "belief",
      "word": "solçuluq"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "levičarstvo",
      "sense": "belief",
      "word": "левичарство"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "belief",
      "word": "vasemmistolaisuus"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "belief",
      "tags": [
        "masculine"
      ],
      "word": "izquierdismo"
    }
  ],
  "word": "leftism"
}