"οἶσθα" meaning in Ancient Greek

{
  "forms": [
    {
      "form": "οἶσθᾰ",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "oîstha",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "οἶσθᾰ"
      },
      "expansion": "οἶσθᾰ • (oîstha)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "(oîda): you know (speaking to one person)",
          "word": "οἶδα"
        }
      ],
      "glosses": [
        "second-person singular perfect active indicative of οἶδα (oîda): you know (speaking to one person)"
      ],
      "id": "en-οἶσθα-grc-verb-GY5aMO7E",
      "links": [
        [
          "οἶδα",
          "οἶδα#Ancient_Greek"
        ]
      ],
      "synonyms": [
        {
          "roman": "oîsth’",
          "tags": [
            "apocopic"
          ],
          "word": "οἶσθ’"
        }
      ],
      "tags": [
        "active",
        "form-of",
        "indicative",
        "perfect",
        "second-person",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ôi̯s.tʰa/"
    },
    {
      "ipa": "/ˈys.θa/"
    },
    {
      "ipa": "/ˈis.θa/"
    },
    {
      "ipa": "/ôi̯s.tʰa/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/ˈys.tʰa/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/ˈys.θa/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ˈys.θa/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ˈis.θa/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "οἶσθα"
}

{
  "forms": [
    {
      "form": "οἶσθᾰ",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "oîstha",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "οἶσθᾰ"
      },
      "expansion": "οἶσθᾰ • (oîstha)",
      "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 properispomenon terms",
        "Ancient Greek terms with IPA pronunciation",
        "Ancient Greek verb forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "extra": "(oîda): you know (speaking to one person)",
          "word": "οἶδα"
        }
      ],
      "glosses": [
        "second-person singular perfect active indicative of οἶδα (oîda): you know (speaking to one person)"
      ],
      "links": [
        [
          "οἶδα",
          "οἶδα#Ancient_Greek"
        ]
      ],
      "tags": [
        "active",
        "form-of",
        "indicative",
        "perfect",
        "second-person",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ôi̯s.tʰa/"
    },
    {
      "ipa": "/ˈys.θa/"
    },
    {
      "ipa": "/ˈis.θa/"
    },
    {
      "ipa": "/ôi̯s.tʰa/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/ˈys.tʰa/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/ˈys.θa/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ˈys.θa/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ˈis.θa/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "synonyms": [
    {
      "roman": "oîsth’",
      "tags": [
        "apocopic"
      ],
      "word": "οἶσθ’"
    }
  ],
  "word": "οἶσθα"
}