"estro" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "-estro",
        "gloss": "leader"
      },
      "expansion": "Back-formation from -estro (“leader”)",
      "name": "back-form"
    }
  ],
  "etymology_text": "Back-formation from -estro (“leader”).",
  "forms": [
    {
      "form": "estron",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "estroj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "estrojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "estro (accusative singular estron, plural estroj, accusative plural estrojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "es‧tro"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "a leader, head of something"
      ],
      "id": "en-estro-eo-noun-iy1orxsr",
      "links": [
        [
          "leader",
          "leader"
        ],
        [
          "head",
          "head"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "eo",
          "name": "Video games",
          "orig": "eo:Video games",
          "parents": [
            "Games",
            "Mass media",
            "Software",
            "Recreation",
            "Culture",
            "Media",
            "Computing",
            "Human activity",
            "Society",
            "Communication",
            "Technology",
            "Human behaviour",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "25 75",
          "kind": "other",
          "name": "Esperanto back-formations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "a boss"
      ],
      "id": "en-estro-eo-noun-AxFT91AJ",
      "links": [
        [
          "video game",
          "video game"
        ],
        [
          "boss",
          "boss"
        ]
      ],
      "raw_glosses": [
        "(video games) a boss"
      ],
      "topics": [
        "video-games"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈestro]"
    },
    {
      "rhymes": "-estro"
    }
  ],
  "word": "estro"
}

{
  "categories": [
    "Esperanto back-formations",
    "Esperanto entries with incorrect language header",
    "Esperanto lemmas",
    "Esperanto nouns",
    "Esperanto terms with IPA pronunciation",
    "Esperanto terms with audio links",
    "Rhymes:Esperanto/estro",
    "es:Dipterans"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "-estro",
        "gloss": "leader"
      },
      "expansion": "Back-formation from -estro (“leader”)",
      "name": "back-form"
    }
  ],
  "etymology_text": "Back-formation from -estro (“leader”).",
  "forms": [
    {
      "form": "estron",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "estroj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "estrojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "estro (accusative singular estron, plural estroj, accusative plural estrojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "es‧tro"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "a leader, head of something"
      ],
      "links": [
        [
          "leader",
          "leader"
        ],
        [
          "head",
          "head"
        ]
      ]
    },
    {
      "categories": [
        "eo:Video games"
      ],
      "glosses": [
        "a boss"
      ],
      "links": [
        [
          "video game",
          "video game"
        ],
        [
          "boss",
          "boss"
        ]
      ],
      "raw_glosses": [
        "(video games) a boss"
      ],
      "topics": [
        "video-games"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈestro]"
    },
    {
      "rhymes": "-estro"
    }
  ],
  "word": "estro"
}