"OS nappy" meaning in English

{
  "forms": [
    {
      "form": "OS nappies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "OS nappy (plural OS nappies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "one-size nappy"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Commonwealth English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Clothing",
          "orig": "en:Clothing",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              60,
              70
            ]
          ],
          "ref": "2009 February 26, Babieseverywhere, “Truth About BumGenius - Calling All Mums Who Use Them”, in Mumsnet:",
          "text": "I liked them enough to buy a set of Version Three Bumgenius OS nappies for DS. What a mistake..he outgrew them at 5 months old !!! So I had to buy some MEOS and wraps for day time use and Quick Flip nappies for night, both of which have a bit of growing space for my baby boy.",
          "type": "quote"
        },
        {
          "bold_text_offsets": [
            [
              54,
              64
            ]
          ],
          "ref": "2013 March 16, Shaunie, “Re: Wee notions experts”, in Cloth Nappy Tree:",
          "text": "I have never used a one size WN but have always found OS nappies too bulky and a poor fit on small babies. I prefer them once they get the ... miiddle^([sic]) rise settings.",
          "type": "quote"
        },
        {
          "bold_text_offsets": [
            [
              122,
              132
            ]
          ],
          "ref": "2014 January 29, “What is one size cloth nappies?”, in Piriuki Blog:",
          "text": "Of course if your baby is a newborn or a preemie, sized nappies like Mini Piriuki will be the perfect choice because most OS nappies just fit from but from 8lb.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Abbreviation of one-size nappy."
      ],
      "id": "en-OS_nappy-en-noun-T3skcsvH",
      "links": [
        [
          "one-size nappy",
          "one-size nappy#English"
        ]
      ],
      "raw_glosses": [
        "(Commonwealth, Ireland, slang, rare) Abbreviation of one-size nappy."
      ],
      "tags": [
        "Commonwealth",
        "Ireland",
        "abbreviation",
        "alt-of",
        "rare",
        "slang"
      ]
    }
  ],
  "word": "OS nappy"
}

{
  "forms": [
    {
      "form": "OS nappies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "OS nappy (plural OS nappies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "one-size nappy"
        }
      ],
      "categories": [
        "Commonwealth English",
        "English abbreviations",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English slang",
        "English terms with quotations",
        "English terms with rare senses",
        "Irish English",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Clothing"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              60,
              70
            ]
          ],
          "ref": "2009 February 26, Babieseverywhere, “Truth About BumGenius - Calling All Mums Who Use Them”, in Mumsnet:",
          "text": "I liked them enough to buy a set of Version Three Bumgenius OS nappies for DS. What a mistake..he outgrew them at 5 months old !!! So I had to buy some MEOS and wraps for day time use and Quick Flip nappies for night, both of which have a bit of growing space for my baby boy.",
          "type": "quote"
        },
        {
          "bold_text_offsets": [
            [
              54,
              64
            ]
          ],
          "ref": "2013 March 16, Shaunie, “Re: Wee notions experts”, in Cloth Nappy Tree:",
          "text": "I have never used a one size WN but have always found OS nappies too bulky and a poor fit on small babies. I prefer them once they get the ... miiddle^([sic]) rise settings.",
          "type": "quote"
        },
        {
          "bold_text_offsets": [
            [
              122,
              132
            ]
          ],
          "ref": "2014 January 29, “What is one size cloth nappies?”, in Piriuki Blog:",
          "text": "Of course if your baby is a newborn or a preemie, sized nappies like Mini Piriuki will be the perfect choice because most OS nappies just fit from but from 8lb.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Abbreviation of one-size nappy."
      ],
      "links": [
        [
          "one-size nappy",
          "one-size nappy#English"
        ]
      ],
      "raw_glosses": [
        "(Commonwealth, Ireland, slang, rare) Abbreviation of one-size nappy."
      ],
      "tags": [
        "Commonwealth",
        "Ireland",
        "abbreviation",
        "alt-of",
        "rare",
        "slang"
      ]
    }
  ],
  "word": "OS nappy"
}