"astronomer" meaning in English

{
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      "name": "Terms suffixed with -er",
      "parents": [],
      "source": "w"
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  "etymology_templates": [
    {
      "args": {
        "1": "astronomy",
        "2": "er"
      },
      "expansion": "astronomy + -er",
      "name": "ety-suffix"
    }
  ],
  "etymology_text": "astronomy + -er",
  "forms": [
    {
      "form": "astronomer",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "astronomers",
      "tags": [
        "plural"
      ]
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "text": "The astronomer stayed up all night, but saw nothing because it was cloudy."
        }
      ],
      "glosses": [
        "An astronomer is a person who studies stars, galaxies and space; a person who studies astronomy."
      ],
      "id": "simple-astronomer-en-noun-Nd~snNhr",
      "raw_tags": [
        "countable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əstrɒnəʊmə/"
    },
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      "audio": "en-us-astronomer.ogg",
      "raw_tags": [
        "Audio"
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "word": "astronomer"
}

{
  "categories": [
    "Terms suffixed with -er"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "astronomy",
        "2": "er"
      },
      "expansion": "astronomy + -er",
      "name": "ety-suffix"
    }
  ],
  "etymology_text": "astronomy + -er",
  "forms": [
    {
      "form": "astronomer",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "astronomers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "expansion": "[POS TABLE]",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      ],
      "examples": [
        {
          "text": "The astronomer stayed up all night, but saw nothing because it was cloudy."
        }
      ],
      "glosses": [
        "An astronomer is a person who studies stars, galaxies and space; a person who studies astronomy."
      ],
      "raw_tags": [
        "countable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/əstrɒnəʊmə/"
    },
    {
      "audio": "en-us-astronomer.ogg",
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      ],
      "tags": [
        "US"
      ]
    }
  ],
  "word": "astronomer"
}