"know one’s onions" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "Dates manquantes en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions verbales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    " ",
    "(Date à préciser) Du verbe to know (« connaître », « savoir »), de one’s (« ses (propres) ») et du nom onion (« oignon ») au pluriel, ce qui donne littéralement « connaître ses oignons »."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Métaphores en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Termes informels en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "S’y connaître."
      ],
      "id": "fr-know_one’s_onions-en-verb-P3CT974j",
      "tags": [
        "figuratively",
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈnəʊ wʌn‿z ˈʌn.jənz\\"
    },
    {
      "audio": "En-au-know one's onions.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7f/En-au-know_one's_onions.ogg/En-au-know_one's_onions.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-au-know one's onions.ogg",
      "raw_tags": [
        "Australie"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "know one’s stuff"
    }
  ],
  "word": "know one’s onions"
}

{
  "categories": [
    "Dates manquantes en anglais",
    "Locutions verbales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    " ",
    "(Date à préciser) Du verbe to know (« connaître », « savoir »), de one’s (« ses (propres) ») et du nom onion (« oignon ») au pluriel, ce qui donne littéralement « connaître ses oignons »."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        "Métaphores en anglais",
        "Termes informels en anglais",
        "Wiktionnaire:Exemples manquants en anglais"
      ],
      "glosses": [
        "S’y connaître."
      ],
      "tags": [
        "figuratively",
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈnəʊ wʌn‿z ˈʌn.jənz\\"
    },
    {
      "audio": "En-au-know one's onions.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7f/En-au-know_one's_onions.ogg/En-au-know_one's_onions.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-au-know one's onions.ogg",
      "raw_tags": [
        "Australie"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "know one’s stuff"
    }
  ],
  "word": "know one’s onions"
}