"pour rien" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "pour rien",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "_dis": "100 0",
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2018, Zaz, J'aime, j'aime",
          "text": "Quelqu’un qui divague un peu pour rien, juste parce que ça fait du bien de penser à n’importe quoi",
          "type": "quotation"
        }
      ],
      "glosses": [
        "for nothing, pointlessly"
      ],
      "id": "en-pour_rien-fr-adv-g3GFhADo",
      "links": [
        [
          "for nothing",
          "for nothing"
        ],
        [
          "pointlessly",
          "pointlessly"
        ]
      ],
      "synonyms": [
        {
          "word": "en vain"
        },
        {
          "word": "en pure perte"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/puʁ ʁjɛ̃/"
    }
  ],
  "word": "pour rien"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "pour rien",
      "name": "fr-prep phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prep_phrase",
  "senses": [
    {
      "id": "en-pour_rien-fr-prep_phrase-47DEQpj8",
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/puʁ ʁjɛ̃/"
    }
  ],
  "word": "pour rien"
}

{
  "categories": [
    "French adverbs",
    "French entries with incorrect language header",
    "French lemmas",
    "French multiword terms",
    "French prepositional phrases",
    "French terms with IPA pronunciation"
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pour rien",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "French terms with quotations",
        "Quotation templates to be cleaned",
        "Requests for translations of French quotations"
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2018, Zaz, J'aime, j'aime",
          "text": "Quelqu’un qui divague un peu pour rien, juste parce que ça fait du bien de penser à n’importe quoi",
          "type": "quotation"
        }
      ],
      "glosses": [
        "for nothing, pointlessly"
      ],
      "links": [
        [
          "for nothing",
          "for nothing"
        ],
        [
          "pointlessly",
          "pointlessly"
        ]
      ],
      "synonyms": [
        {
          "word": "en vain"
        },
        {
          "word": "en pure perte"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/puʁ ʁjɛ̃/"
    }
  ],
  "word": "pour rien"
}

{
  "categories": [
    "French adverbs",
    "French entries with incorrect language header",
    "French lemmas",
    "French multiword terms",
    "French prepositional phrases",
    "French terms with IPA pronunciation"
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pour rien",
      "name": "fr-prep phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prep_phrase",
  "senses": [
    {
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/puʁ ʁjɛ̃/"
    }
  ],
  "word": "pour rien"
}