"fold down" meaning in English

{
  "forms": [
    {
      "form": "folds down",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "folding down",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "folded down",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "folded down",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "fold down (third-person singular simple present folds down, present participle folding down, simple past and past participle folded down)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs formed with \"down\"",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2012, Hilary Wyatt, Tim Amyes, Audio Post Production for Television and Film:",
          "text": "Folding down to mono can create problems if essential material has been recorded into the surrounds, as it will be lost.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To downmix."
      ],
      "id": "en-fold_down-en-verb-O9KkL0ZQ",
      "links": [
        [
          "downmix",
          "downmix"
        ]
      ],
      "raw_glosses": [
        "(transitive, audio) To downmix."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "audio",
        "electrical-engineering",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "fold down"
}

{
  "forms": [
    {
      "form": "folds down",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "folding down",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "folded down",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "folded down",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "fold down (third-person singular simple present folds down, present participle folding down, simple past and past participle folded down)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"down\"",
        "English terms with quotations",
        "English transitive verbs",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2012, Hilary Wyatt, Tim Amyes, Audio Post Production for Television and Film:",
          "text": "Folding down to mono can create problems if essential material has been recorded into the surrounds, as it will be lost.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To downmix."
      ],
      "links": [
        [
          "downmix",
          "downmix"
        ]
      ],
      "raw_glosses": [
        "(transitive, audio) To downmix."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "audio",
        "electrical-engineering",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "fold down"
}