"ΝΝΑ" meaning in Greek

{
  "forms": [
    {
      "form": "NNA",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "noun"
      },
      "expansion": "ΝΝΑ • (NNA)",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "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"
        },
        {
          "kind": "topical",
          "langcode": "el",
          "name": "Compass points",
          "orig": "el:Compass points",
          "parents": [
            "Directions",
            "Navigation",
            "Nature",
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "νότια-νοτιοανατολικά (SSE, south-southeast)"
      ],
      "id": "en-ΝΝΑ-el-noun-kI4ZDMYI",
      "links": [
        [
          "νότια-νοτιοανατολικά",
          "νότια-νοτιοανατολικά"
        ],
        [
          "SSE",
          "SSE"
        ],
        [
          "south-southeast",
          "south-southeast"
        ]
      ]
    }
  ],
  "word": "ΝΝΑ"
}

{
  "forms": [
    {
      "form": "NNA",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "noun"
      },
      "expansion": "ΝΝΑ • (NNA)",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Greek entries with incorrect language header",
        "Greek lemmas",
        "Greek nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "el:Compass points"
      ],
      "glosses": [
        "νότια-νοτιοανατολικά (SSE, south-southeast)"
      ],
      "links": [
        [
          "νότια-νοτιοανατολικά",
          "νότια-νοτιοανατολικά"
        ],
        [
          "SSE",
          "SSE"
        ],
        [
          "south-southeast",
          "south-southeast"
        ]
      ]
    }
  ],
  "word": "ΝΝΑ"
}