"эй" meaning in Russian

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "mhr",
            "2": "эй",
            "bor": "1"
          },
          "expansion": "→ Eastern Mari: эй (ej)",
          "name": "desc"
        }
      ],
      "text": "→ Eastern Mari: эй (ej)"
    }
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "ej",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "interjection"
      },
      "expansion": "эй • (ej)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "67 33",
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "34 66",
          "kind": "other",
          "langcode": "ru",
          "name": "Letter names",
          "orig": "ru:Letter names",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "hey! (you, there!)"
      ],
      "id": "en-эй-ru-intj-6uSkP7~h",
      "links": [
        [
          "hey",
          "hey"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɛj]"
    }
  ],
  "word": "эй"
}

{
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "en",
        "3": "a"
      },
      "expansion": "Borrowed from English a",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English a.",
  "forms": [
    {
      "form": "ej",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "эй • (ej) n inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "34 66",
          "kind": "other",
          "langcode": "ru",
          "name": "Letter names",
          "orig": "ru:Letter names",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A, a"
      ],
      "id": "en-эй-ru-noun-UARaMle5",
      "links": [
        [
          "A",
          "A"
        ],
        [
          "a",
          "a"
        ]
      ],
      "raw_glosses": [
        "(English letter) A, a"
      ],
      "tags": [
        "English",
        "indeclinable",
        "letter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɛj]"
    }
  ],
  "word": "эй"
}

{
  "categories": [
    "Pages with 6 entries",
    "Pages with entries",
    "Russian 1-syllable words",
    "Russian entries with incorrect language header",
    "Russian inanimate nouns",
    "Russian indeclinable nouns",
    "Russian interjections",
    "Russian lemmas",
    "Russian neuter nouns",
    "Russian nouns",
    "Russian terms borrowed from English",
    "Russian terms derived from English",
    "Russian terms with IPA pronunciation",
    "Russian terms with redundant head parameter",
    "ru:Letter names"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "mhr",
            "2": "эй",
            "bor": "1"
          },
          "expansion": "→ Eastern Mari: эй (ej)",
          "name": "desc"
        }
      ],
      "text": "→ Eastern Mari: эй (ej)"
    }
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "ej",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "interjection"
      },
      "expansion": "эй • (ej)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "intj",
  "senses": [
    {
      "glosses": [
        "hey! (you, there!)"
      ],
      "links": [
        [
          "hey",
          "hey"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɛj]"
    }
  ],
  "word": "эй"
}

{
  "categories": [
    "Pages with 6 entries",
    "Pages with entries",
    "Russian 1-syllable words",
    "Russian entries with incorrect language header",
    "Russian inanimate nouns",
    "Russian indeclinable nouns",
    "Russian lemmas",
    "Russian neuter nouns",
    "Russian nouns",
    "Russian terms borrowed from English",
    "Russian terms derived from English",
    "Russian terms with IPA pronunciation",
    "Russian terms with redundant head parameter",
    "ru:Letter names"
  ],
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "en",
        "3": "a"
      },
      "expansion": "Borrowed from English a",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English a.",
  "forms": [
    {
      "form": "ej",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "эй • (ej) n inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A, a"
      ],
      "links": [
        [
          "A",
          "A"
        ],
        [
          "a",
          "a"
        ]
      ],
      "raw_glosses": [
        "(English letter) A, a"
      ],
      "tags": [
        "English",
        "indeclinable",
        "letter"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɛj]"
    }
  ],
  "word": "эй"
}