"certena" meaning in Ido

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "en",
        "3": "certain"
      },
      "expansion": "English certain",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "fr",
        "3": "certain"
      },
      "expansion": "French certain",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from English certain and French certain.",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "adjective",
        "head": ""
      },
      "expansion": "certena",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "certena",
      "name": "io-adj"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ido entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "But at the beginning, certain people said \"--oh no!\"",
          "ref": "1955, The International Language Review, Volumes 1-5, page 3:",
          "text": "Ma ye la komenco, certena personi dicis \"--ho no!\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "certain, particular"
      ],
      "id": "en-certena-io-adj-KMl0GFMD",
      "links": [
        [
          "certain",
          "certain"
        ],
        [
          "particular",
          "particular"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/t͡ser.ˈte.na/"
    }
  ],
  "word": "certena"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "en",
        "3": "certain"
      },
      "expansion": "English certain",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "fr",
        "3": "certain"
      },
      "expansion": "French certain",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from English certain and French certain.",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "adjective",
        "head": ""
      },
      "expansion": "certena",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "certena",
      "name": "io-adj"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Ido adjectives",
        "Ido entries with incorrect language header",
        "Ido lemmas",
        "Ido terms borrowed from English",
        "Ido terms borrowed from French",
        "Ido terms derived from English",
        "Ido terms derived from French",
        "Ido terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "english": "But at the beginning, certain people said \"--oh no!\"",
          "ref": "1955, The International Language Review, Volumes 1-5, page 3:",
          "text": "Ma ye la komenco, certena personi dicis \"--ho no!\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "certain, particular"
      ],
      "links": [
        [
          "certain",
          "certain"
        ],
        [
          "particular",
          "particular"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/t͡ser.ˈte.na/"
    }
  ],
  "word": "certena"
}