"δεινήν" meaning in Ancient Greek

{
  "forms": [
    {
      "form": "deinḗn",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "δεινήν • (deinḗn)",
      "name": "grc-adjective form"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adj",
  "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 redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "deinós",
          "word": "δεινός"
        }
      ],
      "glosses": [
        "feminine accusative singular of δεινός (deinós)"
      ],
      "id": "en-δεινήν-grc-adj-ylzMmMng",
      "links": [
        [
          "δεινός",
          "δεινός#Ancient Greek"
        ]
      ],
      "tags": [
        "accusative",
        "feminine",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/deː.nɛ̌ːn/"
    },
    {
      "ipa": "/ðiˈnin/"
    },
    {
      "ipa": "/ðiˈnin/"
    },
    {
      "ipa": "/deː.nɛ̌ːn/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/diˈne̝n/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/ðiˈnin/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ðiˈnin/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ðiˈnin/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "δεινήν"
}

{
  "forms": [
    {
      "form": "deinḗn",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "δεινήν • (deinḗn)",
      "name": "grc-adjective form"
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Ancient Greek 2-syllable words",
        "Ancient Greek adjective forms",
        "Ancient Greek entries with incorrect language header",
        "Ancient Greek non-lemma forms",
        "Ancient Greek oxytone terms",
        "Ancient Greek terms with IPA pronunciation",
        "Ancient Greek terms with redundant script codes"
      ],
      "form_of": [
        {
          "extra": "deinós",
          "word": "δεινός"
        }
      ],
      "glosses": [
        "feminine accusative singular of δεινός (deinós)"
      ],
      "links": [
        [
          "δεινός",
          "δεινός#Ancient Greek"
        ]
      ],
      "tags": [
        "accusative",
        "feminine",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/deː.nɛ̌ːn/"
    },
    {
      "ipa": "/ðiˈnin/"
    },
    {
      "ipa": "/ðiˈnin/"
    },
    {
      "ipa": "/deː.nɛ̌ːn/",
      "note": "5ᵗʰ BCE Attic"
    },
    {
      "ipa": "/diˈne̝n/",
      "note": "1ˢᵗ CE Egyptian"
    },
    {
      "ipa": "/ðiˈnin/",
      "note": "4ᵗʰ CE Koine"
    },
    {
      "ipa": "/ðiˈnin/",
      "note": "10ᵗʰ CE Byzantine"
    },
    {
      "ipa": "/ðiˈnin/",
      "note": "15ᵗʰ CE Constantinopolitan"
    }
  ],
  "word": "δεινήν"
}