"decennium" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "decennium"
      },
      "expansion": "Latin decennium",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "decennis",
        "3": "",
        "4": "10-year"
      },
      "expansion": "decennis (“10-year”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-ium",
        "3": "",
        "4": "forming abstract nouns"
      },
      "expansion": "-ium (“forming abstract nouns”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "deciēs",
        "3": "",
        "4": "ten times"
      },
      "expansion": "deciēs (“ten times”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "annus",
        "3": "",
        "4": "year"
      },
      "expansion": "annus (“year”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-is",
        "3": "",
        "4": "forming compound adjectives"
      },
      "expansion": "-is (“forming compound adjectives”)",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "decennial",
        "3": "ium"
      },
      "expansion": "decennial + -ium",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Latin decennium, from decennis (“10-year”) + -ium (“forming abstract nouns”), from deciēs (“ten times”) + annus (“year”) + -is (“forming compound adjectives”). Equivalent to decennial + -ium.",
  "forms": [
    {
      "form": "decenniums",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "decennia",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "decennia"
      },
      "expansion": "decennium (plural decenniums or decennia)",
      "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"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with dec-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ium",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ten",
          "orig": "en:Ten",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Time",
          "orig": "en:Time",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "decenniad"
        }
      ],
      "examples": [
        {
          "ref": "1998, soc.culture.netherlands (Usenet)",
          "text": "G.B. still has to cope with the heritage of approx. 20 years of consecutive Conservative reigns, just as you guys are getting your act together after almost a decennium of Enlightened Ronnie.",
          "type": "quotation"
        },
        {
          "ref": "1996, soc.culture.usa (Usenet)",
          "text": "Christian leaders refused even to *look* through Galileo's telescope (as a matter of fact, the Vatican cleared Galileo's name only as late as in the previous decennium).",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of decade: a ten year period."
      ],
      "id": "en-decennium-en-noun-Jj7EHhZQ",
      "links": [
        [
          "decade",
          "decade#English"
        ],
        [
          "ten",
          "ten"
        ],
        [
          "year",
          "year"
        ],
        [
          "period",
          "period"
        ]
      ],
      "related": [
        {
          "tags": [
            "adjective"
          ],
          "word": "decennial"
        },
        {
          "tags": [
            "adverb"
          ],
          "word": "decennially"
        },
        {
          "sense": "10-year anniversary",
          "word": "decennial"
        }
      ],
      "synonyms": [
        {
          "extra": "a ten year period",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "decade"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/dɪˈsɛnɪəm/",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "decennium"
}

{
  "derived": [
    {
      "word": "decenniad"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "decennium"
      },
      "expansion": "Latin decennium",
      "name": "bor"
    },
    {
      "args": {
        "1": "la",
        "2": "decennis",
        "3": "",
        "4": "10-year"
      },
      "expansion": "decennis (“10-year”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-ium",
        "3": "",
        "4": "forming abstract nouns"
      },
      "expansion": "-ium (“forming abstract nouns”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "deciēs",
        "3": "",
        "4": "ten times"
      },
      "expansion": "deciēs (“ten times”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "annus",
        "3": "",
        "4": "year"
      },
      "expansion": "annus (“year”)",
      "name": "m"
    },
    {
      "args": {
        "1": "la",
        "2": "-is",
        "3": "",
        "4": "forming compound adjectives"
      },
      "expansion": "-is (“forming compound adjectives”)",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "decennial",
        "3": "ium"
      },
      "expansion": "decennial + -ium",
      "name": "suffix"
    }
  ],
  "etymology_text": "From Latin decennium, from decennis (“10-year”) + -ium (“forming abstract nouns”), from deciēs (“ten times”) + annus (“year”) + -is (“forming compound adjectives”). Equivalent to decennial + -ium.",
  "forms": [
    {
      "form": "decenniums",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "decennia",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "decennia"
      },
      "expansion": "decennium (plural decenniums or decennia)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "tags": [
        "adjective"
      ],
      "word": "decennial"
    },
    {
      "tags": [
        "adverb"
      ],
      "word": "decennially"
    },
    {
      "sense": "10-year anniversary",
      "word": "decennial"
    }
  ],
  "senses": [
    {
      "categories": [
        "English 3-syllable words",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms borrowed from Latin",
        "English terms derived from Latin",
        "English terms prefixed with dec-",
        "English terms suffixed with -ium",
        "English terms with IPA pronunciation",
        "English terms with quotations",
        "en:Ten",
        "en:Time"
      ],
      "examples": [
        {
          "ref": "1998, soc.culture.netherlands (Usenet)",
          "text": "G.B. still has to cope with the heritage of approx. 20 years of consecutive Conservative reigns, just as you guys are getting your act together after almost a decennium of Enlightened Ronnie.",
          "type": "quotation"
        },
        {
          "ref": "1996, soc.culture.usa (Usenet)",
          "text": "Christian leaders refused even to *look* through Galileo's telescope (as a matter of fact, the Vatican cleared Galileo's name only as late as in the previous decennium).",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of decade: a ten year period."
      ],
      "links": [
        [
          "decade",
          "decade#English"
        ],
        [
          "ten",
          "ten"
        ],
        [
          "year",
          "year"
        ],
        [
          "period",
          "period"
        ]
      ],
      "synonyms": [
        {
          "extra": "a ten year period",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "decade"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/dɪˈsɛnɪəm/",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "decennium"
}