"ἐστιν" meaning in Ancient Greek

{
  "forms": [
    {
      "form": "ἐστῐν",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "estin",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ἐστῐν"
      },
      "expansion": "ἐστῐν • (estin)",
      "name": "grc-verb form"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ancient Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ancient Greek terms with movable nu",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ancient Greek terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "(eimí) with movable nu: he, she, or it is",
          "word": "εἰμί"
        }
      ],
      "glosses": [
        "third-person singular present active indicative unstressed enclitic of εἰμί (eimí) with movable nu: he, she, or it is"
      ],
      "id": "en-ἐστιν-grc-verb-5MJrMYA6",
      "links": [
        [
          "εἰμί",
          "εἰμί#Ancient Greek"
        ],
        [
          "movable nu",
          "movable nu#English"
        ]
      ],
      "synonyms": [
        {
          "english": "without movable nu",
          "roman": "esti",
          "word": "ἐστῐ"
        }
      ],
      "tags": [
        "active",
        "enclitic",
        "form-of",
        "indicative",
        "present",
        "singular",
        "third-person",
        "unstressed"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/es.tin/"
    },
    {
      "ipa": "/es.tin/"
    },
    {
      "ipa": "/es.tin/"
    },
    {
      "ipa": "/es.tin/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/es.tin/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/es.tin/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/es.tin/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/es.tin/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "ἐστιν"
}

{
  "forms": [
    {
      "form": "ἐστῐν",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "estin",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ἐστῐν"
      },
      "expansion": "ἐστῐν • (estin)",
      "name": "grc-verb form"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Ancient Greek 2-syllable words",
        "Ancient Greek entries with incorrect language header",
        "Ancient Greek non-lemma forms",
        "Ancient Greek terms with IPA pronunciation",
        "Ancient Greek terms with movable nu",
        "Ancient Greek terms with redundant script codes",
        "Ancient Greek unaccented terms",
        "Ancient Greek verb forms"
      ],
      "form_of": [
        {
          "extra": "(eimí) with movable nu: he, she, or it is",
          "word": "εἰμί"
        }
      ],
      "glosses": [
        "third-person singular present active indicative unstressed enclitic of εἰμί (eimí) with movable nu: he, she, or it is"
      ],
      "links": [
        [
          "εἰμί",
          "εἰμί#Ancient Greek"
        ],
        [
          "movable nu",
          "movable nu#English"
        ]
      ],
      "tags": [
        "active",
        "enclitic",
        "form-of",
        "indicative",
        "present",
        "singular",
        "third-person",
        "unstressed"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/es.tin/"
    },
    {
      "ipa": "/es.tin/"
    },
    {
      "ipa": "/es.tin/"
    },
    {
      "ipa": "/es.tin/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/es.tin/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/es.tin/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/es.tin/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/es.tin/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "synonyms": [
    {
      "english": "without movable nu",
      "roman": "esti",
      "word": "ἐστῐ"
    }
  ],
  "word": "ἐστιν"
}