"rentrée scolaire" meaning in French

{
  "forms": [
    {
      "form": "rentrées scolaires",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "rentrée scolaire f (plural rentrées scolaires)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Education",
          "orig": "fr:Education",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the return to school; the beginning of the new school year"
      ],
      "id": "en-rentrée_scolaire-fr-noun-6Xp-eTF-",
      "links": [
        [
          "education",
          "education"
        ],
        [
          "return",
          "return"
        ],
        [
          "school year",
          "school year"
        ]
      ],
      "raw_glosses": [
        "(education) the return to school; the beginning of the new school year"
      ],
      "synonyms": [
        {
          "word": "rentrée des classes"
        }
      ],
      "tags": [
        "feminine"
      ],
      "topics": [
        "education"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʁɑ̃.tʁe skɔ.lɛʁ/"
    }
  ],
  "word": "rentrée scolaire"
}

{
  "forms": [
    {
      "form": "rentrées scolaires",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "rentrée scolaire f (plural rentrées scolaires)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French countable nouns",
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French multiword terms",
        "French nouns",
        "French nouns with red links in their headword lines",
        "French terms with IPA pronunciation",
        "fr:Education"
      ],
      "glosses": [
        "the return to school; the beginning of the new school year"
      ],
      "links": [
        [
          "education",
          "education"
        ],
        [
          "return",
          "return"
        ],
        [
          "school year",
          "school year"
        ]
      ],
      "raw_glosses": [
        "(education) the return to school; the beginning of the new school year"
      ],
      "synonyms": [
        {
          "word": "rentrée des classes"
        }
      ],
      "tags": [
        "feminine"
      ],
      "topics": [
        "education"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʁɑ̃.tʁe skɔ.lɛʁ/"
    }
  ],
  "word": "rentrée scolaire"
}