"backward compatibility" meaning in English

{
  "forms": [
    {
      "form": "backward compatibilities",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "backward compatibility (usually uncountable, plural backward compatibilities)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "antonyms": [
        {
          "word": "backward incompatibility"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Software",
          "orig": "en:Software",
          "parents": [
            "Computing",
            "Media",
            "Technology",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Capability of interoperating with older systems."
      ],
      "id": "en-backward_compatibility-en-noun-j0PTJ5d7",
      "links": [
        [
          "software",
          "software"
        ],
        [
          "interoperating",
          "interoperate"
        ]
      ],
      "raw_glosses": [
        "(software) Capability of interoperating with older systems."
      ],
      "related": [
        {
          "word": "backward compatible"
        },
        {
          "word": "forward compatibility"
        }
      ],
      "synonyms": [
        {
          "word": "backwards compatibility"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences",
        "software"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "compatibility with older systems",
          "word": "向後兼容"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "xiànghòu jiānróng",
          "sense": "compatibility with older systems",
          "word": "向后兼容"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "compatibility with older systems",
          "word": "taaksepäin yhteensopivuus"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "compatibilité descendante"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "rétrocompatibilité"
        },
        {
          "code": "gl",
          "lang": "Galician",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "retrocompatibilidade"
        },
        {
          "code": "ka",
          "lang": "Georgian",
          "roman": "uḳutavsebadoba",
          "sense": "compatibility with older systems",
          "word": "უკუთავსებადობა"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "Abwärtskompatibilität"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "Rückwärtskompatibilität"
        },
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "kōhō gokansei",
          "sense": "compatibility with older systems",
          "word": "後方互換性"
        },
        {
          "code": "mi",
          "lang": "Maori",
          "sense": "compatibility with older systems",
          "word": "hototahi whakamuri"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "retrocompatibilidade"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "compatibilidade retroativa"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "compatibilidade reversa"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "obrátnaja sovmestímostʹ",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "обра́тная совмести́мость"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "compatibility with older systems",
          "tags": [
            "feminine"
          ],
          "word": "retrocompatibilidad"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "compatibility with older systems",
          "tags": [
            "common-gender"
          ],
          "word": "bakåtkompatibilitet"
        }
      ],
      "wikipedia": [
        "backward compatibility"
      ]
    }
  ],
  "word": "backward compatibility"
}

{
  "forms": [
    {
      "form": "backward compatibilities",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "backward compatibility (usually uncountable, plural backward compatibilities)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "backward compatible"
    },
    {
      "word": "forward compatibility"
    }
  ],
  "senses": [
    {
      "antonyms": [
        {
          "word": "backward incompatibility"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "en:Software"
      ],
      "glosses": [
        "Capability of interoperating with older systems."
      ],
      "links": [
        [
          "software",
          "software"
        ],
        [
          "interoperating",
          "interoperate"
        ]
      ],
      "raw_glosses": [
        "(software) Capability of interoperating with older systems."
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences",
        "software"
      ],
      "wikipedia": [
        "backward compatibility"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "backwards compatibility"
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "compatibility with older systems",
      "word": "向後兼容"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "xiànghòu jiānróng",
      "sense": "compatibility with older systems",
      "word": "向后兼容"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "compatibility with older systems",
      "word": "taaksepäin yhteensopivuus"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "compatibilité descendante"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "rétrocompatibilité"
    },
    {
      "code": "gl",
      "lang": "Galician",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "retrocompatibilidade"
    },
    {
      "code": "ka",
      "lang": "Georgian",
      "roman": "uḳutavsebadoba",
      "sense": "compatibility with older systems",
      "word": "უკუთავსებადობა"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "Abwärtskompatibilität"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "Rückwärtskompatibilität"
    },
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "kōhō gokansei",
      "sense": "compatibility with older systems",
      "word": "後方互換性"
    },
    {
      "code": "mi",
      "lang": "Maori",
      "sense": "compatibility with older systems",
      "word": "hototahi whakamuri"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "retrocompatibilidade"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "compatibilidade retroativa"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "compatibilidade reversa"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "obrátnaja sovmestímostʹ",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "обра́тная совмести́мость"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "compatibility with older systems",
      "tags": [
        "feminine"
      ],
      "word": "retrocompatibilidad"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "compatibility with older systems",
      "tags": [
        "common-gender"
      ],
      "word": "bakåtkompatibilitet"
    }
  ],
  "word": "backward compatibility"
}