"en rien" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "en rien",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "not at all"
      ],
      "id": "en-en_rien-fr-adv-1ECmOiAl",
      "links": [
        [
          "not at all",
          "not at all"
        ]
      ],
      "synonyms": [
        {
          "word": "nullement"
        },
        {
          "word": "aucunement"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɑ̃ ʁjɛ̃/"
    }
  ],
  "word": "en rien"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "en rien",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "French adverbs",
        "French entries with incorrect language header",
        "French lemmas",
        "French multiword terms",
        "French terms with IPA pronunciation"
      ],
      "glosses": [
        "not at all"
      ],
      "links": [
        [
          "not at all",
          "not at all"
        ]
      ],
      "synonyms": [
        {
          "word": "nullement"
        },
        {
          "word": "aucunement"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɑ̃ ʁjɛ̃/"
    }
  ],
  "word": "en rien"
}