"synodic month" meaning in English

{
  "etymology_text": "synodic + month",
  "forms": [
    {
      "form": "synodic months",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "synodic month (plural synodic months)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "66 34",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "63 37",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "67 33",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "a month of approximately 29.53 days, measured from a lunar phase until the return of that same phase. The long-term average duration is 29.530 588 days (29 d 12 h 44 min 2.8 s), or about 29 ½ days."
      ],
      "id": "en-synodic_month-en-noun-l-PXvQE6",
      "links": [
        [
          "day",
          "day"
        ],
        [
          "lunar phase",
          "lunar phase"
        ]
      ],
      "synonyms": [
        {
          "_dis1": "88 12",
          "word": "lunation"
        },
        {
          "_dis1": "88 12",
          "word": "lunar month"
        }
      ],
      "translations": [
        {
          "_dis1": "80 20",
          "code": "fa",
          "lang": "Persian",
          "roman": "mâh-e eqterâni",
          "sense": "month, measured from a lunar phase until the return of that same phase",
          "word": "ماه اقترانی"
        },
        {
          "_dis1": "80 20",
          "code": "ro",
          "lang": "Romanian",
          "sense": "month, measured from a lunar phase until the return of that same phase",
          "tags": [
            "feminine"
          ],
          "word": "lună sinodică"
        },
        {
          "_dis1": "80 20",
          "code": "ru",
          "lang": "Russian",
          "roman": "sinodičeskij mésjac",
          "sense": "month, measured from a lunar phase until the return of that same phase",
          "tags": [
            "masculine"
          ],
          "word": "синодический ме́сяц"
        }
      ]
    },
    {
      "categories": [
        {
          "_dis": "36 64",
          "kind": "topical",
          "langcode": "en",
          "name": "Calendar",
          "orig": "en:Calendar",
          "parents": [
            "Timekeeping",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "the variably cyclic period from one new moon until the next."
      ],
      "id": "en-synodic_month-en-noun-9YswIFql",
      "links": [
        [
          "new moon",
          "new moon"
        ]
      ],
      "translations": [
        {
          "_dis1": "12 88",
          "code": "ru",
          "lang": "Russian",
          "roman": "sinodičeskij mésjac",
          "sense": "the variably cyclic period from one new moon until the next",
          "tags": [
            "masculine"
          ],
          "word": "синодический ме́сяц"
        },
        {
          "_dis1": "12 88",
          "code": "ru",
          "lang": "Russian",
          "roman": "lúnnyj mésjac",
          "sense": "the variably cyclic period from one new moon until the next",
          "tags": [
            "masculine"
          ],
          "word": "лу́нный ме́сяц"
        }
      ]
    }
  ],
  "wikipedia": [
    "lunation",
    "synodic month"
  ],
  "word": "synodic month"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with non-redundant non-automated sortkeys",
    "en:Calendar"
  ],
  "etymology_text": "synodic + month",
  "forms": [
    {
      "form": "synodic months",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "synodic month (plural synodic months)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "a month of approximately 29.53 days, measured from a lunar phase until the return of that same phase. The long-term average duration is 29.530 588 days (29 d 12 h 44 min 2.8 s), or about 29 ½ days."
      ],
      "links": [
        [
          "day",
          "day"
        ],
        [
          "lunar phase",
          "lunar phase"
        ]
      ]
    },
    {
      "glosses": [
        "the variably cyclic period from one new moon until the next."
      ],
      "links": [
        [
          "new moon",
          "new moon"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "lunation"
    },
    {
      "word": "lunar month"
    }
  ],
  "translations": [
    {
      "code": "fa",
      "lang": "Persian",
      "roman": "mâh-e eqterâni",
      "sense": "month, measured from a lunar phase until the return of that same phase",
      "word": "ماه اقترانی"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "month, measured from a lunar phase until the return of that same phase",
      "tags": [
        "feminine"
      ],
      "word": "lună sinodică"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "sinodičeskij mésjac",
      "sense": "month, measured from a lunar phase until the return of that same phase",
      "tags": [
        "masculine"
      ],
      "word": "синодический ме́сяц"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "sinodičeskij mésjac",
      "sense": "the variably cyclic period from one new moon until the next",
      "tags": [
        "masculine"
      ],
      "word": "синодический ме́сяц"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "lúnnyj mésjac",
      "sense": "the variably cyclic period from one new moon until the next",
      "tags": [
        "masculine"
      ],
      "word": "лу́нный ме́сяц"
    }
  ],
  "wikipedia": [
    "lunation",
    "synodic month"
  ],
  "word": "synodic month"
}