"salutation" meaning in English

{
  "forms": [
    {
      "form": "salutation",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "salutations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "expansion": "[POS TABLE]",
      "name": "noun"
    }
  ],
  "hyphenation": "sal‧u‧ta‧tion",
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "text": "The salutation, \"Dear. Mr. Renolds\" misspelled his name."
        }
      ],
      "glosses": [
        "A salutation is the opening of a letter."
      ],
      "id": "simple-salutation-en-noun-Xc0e3P8Q",
      "raw_tags": [
        "countable & uncountable"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "text": "Salutations were exchanged each morning as the regulars entered the shop."
        },
        {
          "text": "She waved in salutation."
        }
      ],
      "glosses": [
        "A salutation is the act of greeting."
      ],
      "id": "simple-salutation-en-noun-N-Pl1ce7",
      "raw_tags": [
        "countable"
      ],
      "synonyms": [
        {
          "word": "hello"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌsæljuˈteɪʃən/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-salutation.wav",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "salutation"
}

{
  "forms": [
    {
      "form": "salutation",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "salutations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "expansion": "[POS TABLE]",
      "name": "noun"
    }
  ],
  "hyphenation": "sal‧u‧ta‧tion",
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Countable nouns",
        "Uncountable nouns"
      ],
      "examples": [
        {
          "text": "The salutation, \"Dear. Mr. Renolds\" misspelled his name."
        }
      ],
      "glosses": [
        "A salutation is the opening of a letter."
      ],
      "raw_tags": [
        "countable & uncountable"
      ]
    },
    {
      "categories": [
        "Countable nouns"
      ],
      "examples": [
        {
          "text": "Salutations were exchanged each morning as the regulars entered the shop."
        },
        {
          "text": "She waved in salutation."
        }
      ],
      "glosses": [
        "A salutation is the act of greeting."
      ],
      "raw_tags": [
        "countable"
      ],
      "synonyms": [
        {
          "word": "hello"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌsæljuˈteɪʃən/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-salutation.wav",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "salutation"
}