"'bye" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "goodbye"
      },
      "expansion": "Abbreviation of goodbye.",
      "name": "abbreviation of"
    }
  ],
  "etymology_text": "Abbreviation of goodbye.",
  "head_templates": [
    {
      "args": {},
      "expansion": "'bye",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2016, VOA Learning English (public domain)",
          "text": "Sure. Okay, ’bye. — ‘Bye.\nAudio (US): (file)"
        }
      ],
      "glosses": [
        "Goodbye: used when the speaker or addressee is departing."
      ],
      "id": "en-'bye-en-intj-zKnfqLyI",
      "links": [
        [
          "Goodbye",
          "goodbye"
        ]
      ],
      "raw_glosses": [
        "(informal) Goodbye: used when the speaker or addressee is departing."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "'bye"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "goodbye"
      },
      "expansion": "Abbreviation of goodbye.",
      "name": "abbreviation of"
    }
  ],
  "etymology_text": "Abbreviation of goodbye.",
  "head_templates": [
    {
      "args": {},
      "expansion": "'bye",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "English abbreviations",
        "English entries with incorrect language header",
        "English informal terms",
        "English interjections",
        "English lemmas",
        "English terms with audio pronunciation",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2016, VOA Learning English (public domain)",
          "text": "Sure. Okay, ’bye. — ‘Bye.\nAudio (US): (file)"
        }
      ],
      "glosses": [
        "Goodbye: used when the speaker or addressee is departing."
      ],
      "links": [
        [
          "Goodbye",
          "goodbye"
        ]
      ],
      "raw_glosses": [
        "(informal) Goodbye: used when the speaker or addressee is departing."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "'bye"
}