"hoi" meaning in English

{
  "etymology_text": "Variant of hoy.",
  "head_templates": [
    {
      "args": {},
      "expansion": "hoi",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English greetings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 16 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1891, Thomas Hardy, Tess of the d'Urbervilles, volume 1, London: James R. Osgood, McIlvaine and Co., page 55:",
          "text": "A hollow groan, unlike anything she had ever heard in her life, came from the front, followed by a shout of \"Hoi, there!\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "A call to gain someone's attention; hey!"
      ],
      "id": "en-hoi-en-intj-4p6qp4yI",
      "links": [
        [
          "hey",
          "hey"
        ]
      ],
      "related": [
        {
          "word": "hoi toider"
        },
        {
          "word": "hoi polloi"
        }
      ]
    }
  ],
  "word": "hoi"
}

{
  "etymology_text": "Variant of hoy.",
  "head_templates": [
    {
      "args": {},
      "expansion": "hoi",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "related": [
    {
      "word": "hoi toider"
    },
    {
      "word": "hoi polloi"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English greetings",
        "English interjections",
        "English lemmas",
        "English terms with quotations",
        "Pages with 16 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1891, Thomas Hardy, Tess of the d'Urbervilles, volume 1, London: James R. Osgood, McIlvaine and Co., page 55:",
          "text": "A hollow groan, unlike anything she had ever heard in her life, came from the front, followed by a shout of \"Hoi, there!\"",
          "type": "quote"
        }
      ],
      "glosses": [
        "A call to gain someone's attention; hey!"
      ],
      "links": [
        [
          "hey",
          "hey"
        ]
      ]
    }
  ],
  "word": "hoi"
}