"-es" meaning in German

{
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "inflectional suffixes"
      },
      "expansion": "-es",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "suffix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "genitive ending",
          "word": "-s"
        }
      ],
      "glosses": [
        "Alternative form of -s (genitive ending)"
      ],
      "id": "en--es-de-suffix-5ZT3BGTk",
      "links": [
        [
          "-s",
          "-s#German"
        ]
      ],
      "related": [
        {
          "word": "-es-"
        }
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əs/"
    }
  ],
  "word": "-es"
}

{
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "suffix",
        "3": "invariable"
      },
      "expansion": "-es (invariable)",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "suffix",
  "senses": [
    {
      "antonyms": [
        {
          "word": "-is"
        }
      ],
      "categories": [
        {
          "kind": "topical",
          "langcode": "de",
          "name": "Music",
          "orig": "de:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "33 67",
          "kind": "other",
          "name": "German entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "derived": [
        {
          "english": "double flat",
          "word": "-eses"
        }
      ],
      "examples": [
        {
          "text": "A + -es → As (“A flat”)",
          "type": "example"
        },
        {
          "text": "B + -es → Bes (“B double flat”)",
          "type": "example"
        },
        {
          "text": "C + -es → Ces (“C flat”)",
          "type": "example"
        },
        {
          "text": "D + -es → Des (“D flat”)",
          "type": "example"
        },
        {
          "text": "E + -es → Es (“E flat”)",
          "type": "example"
        },
        {
          "text": "F + -es → Fes (“F flat”)",
          "type": "example"
        },
        {
          "text": "G + -es → Ges (“G flat”)",
          "type": "example"
        }
      ],
      "glosses": [
        "flat, ♭"
      ],
      "id": "en--es-de-suffix-o8UNrUwy",
      "links": [
        [
          "music",
          "music"
        ],
        [
          "flat",
          "flat"
        ],
        [
          "♭",
          "♭#Translingual"
        ]
      ],
      "raw_glosses": [
        "(music) flat, ♭"
      ],
      "tags": [
        "invariable",
        "morpheme"
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛs/"
    }
  ],
  "word": "-es"
}

{
  "categories": [
    "German 1-syllable words",
    "German entries with incorrect language header",
    "German inflectional suffixes",
    "German lemmas",
    "German suffixes",
    "German terms with IPA pronunciation"
  ],
  "etymology_number": 1,
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "inflectional suffixes"
      },
      "expansion": "-es",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "suffix",
  "related": [
    {
      "word": "-es-"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "extra": "genitive ending",
          "word": "-s"
        }
      ],
      "glosses": [
        "Alternative form of -s (genitive ending)"
      ],
      "links": [
        [
          "-s",
          "-s#German"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əs/"
    }
  ],
  "word": "-es"
}

{
  "categories": [
    "German 1-syllable words",
    "German entries with incorrect language header",
    "German lemmas",
    "German suffixes",
    "German terms with IPA pronunciation"
  ],
  "derived": [
    {
      "english": "double flat",
      "word": "-eses"
    }
  ],
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "suffix",
        "3": "invariable"
      },
      "expansion": "-es (invariable)",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "suffix",
  "senses": [
    {
      "antonyms": [
        {
          "word": "-is"
        }
      ],
      "categories": [
        "de:Music"
      ],
      "examples": [
        {
          "text": "A + -es → As (“A flat”)",
          "type": "example"
        },
        {
          "text": "B + -es → Bes (“B double flat”)",
          "type": "example"
        },
        {
          "text": "C + -es → Ces (“C flat”)",
          "type": "example"
        },
        {
          "text": "D + -es → Des (“D flat”)",
          "type": "example"
        },
        {
          "text": "E + -es → Es (“E flat”)",
          "type": "example"
        },
        {
          "text": "F + -es → Fes (“F flat”)",
          "type": "example"
        },
        {
          "text": "G + -es → Ges (“G flat”)",
          "type": "example"
        }
      ],
      "glosses": [
        "flat, ♭"
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "flat",
          "flat"
        ],
        [
          "♭",
          "♭#Translingual"
        ]
      ],
      "raw_glosses": [
        "(music) flat, ♭"
      ],
      "tags": [
        "invariable",
        "morpheme"
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛs/"
    }
  ],
  "word": "-es"
}