"certu" meaning in Esperanto

{
  "head_templates": [
    {
      "args": {},
      "expansion": "certu",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "cer‧tu"
  ],
  "hyphenations": [
    {
      "parts": [
        "cer‧tu"
      ]
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "62 1 35 2",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "50 1 48 1",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "certi"
        }
      ],
      "glosses": [
        "imperative of certi"
      ],
      "id": "en-certu-eo-verb-qqr7w7rL",
      "links": [
        [
          "certi",
          "certi#Esperanto"
        ]
      ],
      "tags": [
        "form-of",
        "imperative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡sertu/"
    },
    {
      "rhymes": "-ertu"
    }
  ],
  "word": "certu"
}

{
  "categories": [
    "Old Irish adjective forms",
    "Old Irish entries with incorrect language header",
    "Old Irish non-lemma forms",
    "Old Irish noun forms",
    "Old Irish terms with IPA pronunciation",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "certu",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "cer‧tu"
  ],
  "hyphenations": [
    {
      "parts": [
        "cer‧tu"
      ]
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Esperanto 2-syllable words",
        "Esperanto entries with incorrect language header",
        "Esperanto non-lemma forms",
        "Esperanto terms with IPA pronunciation",
        "Esperanto verb forms",
        "Pages with 2 entries",
        "Pages with entries",
        "Rhymes:Esperanto/ertu",
        "Rhymes:Esperanto/ertu/2 syllables"
      ],
      "form_of": [
        {
          "word": "certi"
        }
      ],
      "glosses": [
        "imperative of certi"
      ],
      "links": [
        [
          "certi",
          "certi#Esperanto"
        ]
      ],
      "tags": [
        "form-of",
        "imperative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡sertu/"
    },
    {
      "rhymes": "-ertu"
    }
  ],
  "word": "certu"
}