"salu2" meaning in Spanish

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "noun form",
        "g": "m-p"
      },
      "expansion": "salu2 m pl",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "saludos"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish number homophones",
          "parents": [
            "Number homophones",
            "Rebuses",
            "Terms spelled with numbers",
            "Terms by etymology"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of saludos."
      ],
      "id": "en-salu2-es-noun-rXJvleLQ",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "text messaging",
          "text messaging"
        ],
        [
          "saludos",
          "saludos#Spanish"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, text messaging) Abbreviation of saludos."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "masculine",
        "plural"
      ]
    }
  ],
  "word": "salu2"
}

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "noun form",
        "g": "m-p"
      },
      "expansion": "salu2 m pl",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "saludos"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Spanish abbreviations",
        "Spanish entries with incorrect language header",
        "Spanish internet slang",
        "Spanish non-lemma forms",
        "Spanish noun forms",
        "Spanish number homophones",
        "Spanish terms spelled with numbers",
        "Spanish text messaging slang"
      ],
      "glosses": [
        "Abbreviation of saludos."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "text messaging",
          "text messaging"
        ],
        [
          "saludos",
          "saludos#Spanish"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, text messaging) Abbreviation of saludos."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "masculine",
        "plural"
      ]
    }
  ],
  "word": "salu2"
}