"usefulness" meaning in All languages combined

{
  "antonyms": [
    {
      "word": "uselessness"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "英語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語 国際音声記号あり",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語 音声リンクがある語句",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語_名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語_接尾辞\"-ness\"",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "useful + 接尾辞 \"-ness\""
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "有用、有効性、役に立つ性質。"
      ],
      "id": "ja-usefulness-en-noun-~hh7Xrfn"
    },
    {
      "glosses": [
        "有益、利益をもたらす性質。"
      ],
      "id": "ja-usefulness-en-noun-7NhQiXt6"
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjuːsfəlnəs/"
    }
  ],
  "synonyms": [
    {
      "word": "utility"
    }
  ],
  "word": "usefulness"
}

{
  "antonyms": [
    {
      "word": "uselessness"
    }
  ],
  "categories": [
    "英語",
    "英語 国際音声記号あり",
    "英語 音声リンクがある語句",
    "英語_名詞",
    "英語_接尾辞\"-ness\""
  ],
  "etymology_texts": [
    "useful + 接尾辞 \"-ness\""
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "有用、有効性、役に立つ性質。"
      ]
    },
    {
      "glosses": [
        "有益、利益をもたらす性質。"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈjuːsfəlnəs/"
    }
  ],
  "synonyms": [
    {
      "word": "utility"
    }
  ],
  "word": "usefulness"
}