"m" meaning in Spanish

{
  "etymology_number": 1,
  "forms": [
    {
      "form": "M",
      "tags": [
        "uppercase"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "letter",
        "3": "lower case",
        "4": "",
        "5": "upper case",
        "6": "M"
      },
      "expansion": "m (lower case, upper case M)",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "_dis": "94 6",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "89 11",
          "kind": "other",
          "name": "Spanish pronouns",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The thirteenth letter of the Spanish alphabet, written in the Latin script."
      ],
      "id": "en-m-es-character-wJdyxh4F",
      "links": [
        [
          "letter",
          "letter"
        ],
        [
          "alphabet",
          "alphabet"
        ]
      ],
      "tags": [
        "letter",
        "lowercase"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/m/",
      "tags": [
        "phoneme"
      ]
    },
    {
      "ipa": "/ˈeme/",
      "tags": [
        "letter",
        "name"
      ]
    },
    {
      "ipa": "[ˈe.me]",
      "tags": [
        "letter",
        "name"
      ]
    },
    {
      "rhymes": "-eme"
    }
  ],
  "word": "m"
}

{
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "pronoun"
      },
      "expansion": "m",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "pron",
  "senses": [
    {
      "alt_of": [
        {
          "word": "me"
        }
      ],
      "categories": [],
      "glosses": [
        "Abbreviation of me."
      ],
      "id": "en-m-es-pron-BmAIqiB7",
      "links": [
        [
          "text messaging",
          "text messaging"
        ],
        [
          "me",
          "me#Spanish"
        ]
      ],
      "raw_glosses": [
        "(text messaging) Abbreviation of me."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/me/"
    },
    {
      "ipa": "[me]"
    },
    {
      "rhymes": "-e"
    }
  ],
  "word": "m"
}

{
  "categories": [
    "Pages with raw sortkeys",
    "Rhymes:Spanish/e",
    "Rhymes:Spanish/e/1 syllable",
    "Rhymes:Spanish/eme",
    "Rhymes:Spanish/eme/2 syllables",
    "Spanish 1-syllable words",
    "Spanish 2-syllable words",
    "Spanish entries with incorrect language header",
    "Spanish lemmas",
    "Spanish letters",
    "Spanish pronouns",
    "Spanish terms with IPA pronunciation"
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "M",
      "tags": [
        "uppercase"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "letter",
        "3": "lower case",
        "4": "",
        "5": "upper case",
        "6": "M"
      },
      "expansion": "m (lower case, upper case M)",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "character",
  "senses": [
    {
      "glosses": [
        "The thirteenth letter of the Spanish alphabet, written in the Latin script."
      ],
      "links": [
        [
          "letter",
          "letter"
        ],
        [
          "alphabet",
          "alphabet"
        ]
      ],
      "tags": [
        "letter",
        "lowercase"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/m/",
      "tags": [
        "phoneme"
      ]
    },
    {
      "ipa": "/ˈeme/",
      "tags": [
        "letter",
        "name"
      ]
    },
    {
      "ipa": "[ˈe.me]",
      "tags": [
        "letter",
        "name"
      ]
    },
    {
      "rhymes": "-eme"
    }
  ],
  "word": "m"
}

{
  "categories": [
    "Pages with raw sortkeys",
    "Rhymes:Spanish/e",
    "Rhymes:Spanish/e/1 syllable",
    "Spanish 1-syllable words",
    "Spanish entries with incorrect language header",
    "Spanish lemmas",
    "Spanish pronouns",
    "Spanish terms with IPA pronunciation"
  ],
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "pronoun"
      },
      "expansion": "m",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "pron",
  "senses": [
    {
      "alt_of": [
        {
          "word": "me"
        }
      ],
      "categories": [
        "Spanish abbreviations",
        "Spanish text messaging slang"
      ],
      "glosses": [
        "Abbreviation of me."
      ],
      "links": [
        [
          "text messaging",
          "text messaging"
        ],
        [
          "me",
          "me#Spanish"
        ]
      ],
      "raw_glosses": [
        "(text messaging) Abbreviation of me."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/me/"
    },
    {
      "ipa": "[me]"
    },
    {
      "rhymes": "-e"
    }
  ],
  "word": "m"
}