"khử" meaning in Vietnamien

{
  "categories": [
    {
      "kind": "other",
      "name": "Verbes en vietnamien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vietnamien",
      "orig": "vietnamien",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Vietnamien",
  "lang_code": "vi",
  "paronyms": [
    {
      "word": "khụ"
    },
    {
      "word": "khú"
    },
    {
      "word": "khu"
    }
  ],
  "pos": "verb",
  "pos_title": "Verbe",
  "senses": [
    {
      "glosses": [
        "Éliminer; ôter."
      ],
      "id": "fr-khử-vi-verb-7FukwO4H"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Termes vulgaires en vietnamien",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Faire mourir; se débarrasser."
      ],
      "id": "fr-khử-vi-verb-~wsRr~dz",
      "tags": [
        "vulgar"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en vietnamien de la chimie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Réduire."
      ],
      "id": "fr-khử-vi-verb-tE7grgLb",
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\xɯ˧˨˧\\"
    }
  ],
  "word": "khử"
}

{
  "categories": [
    "Verbes en vietnamien",
    "vietnamien"
  ],
  "lang": "Vietnamien",
  "lang_code": "vi",
  "paronyms": [
    {
      "word": "khụ"
    },
    {
      "word": "khú"
    },
    {
      "word": "khu"
    }
  ],
  "pos": "verb",
  "pos_title": "Verbe",
  "senses": [
    {
      "glosses": [
        "Éliminer; ôter."
      ]
    },
    {
      "categories": [
        "Termes vulgaires en vietnamien"
      ],
      "glosses": [
        "Faire mourir; se débarrasser."
      ],
      "tags": [
        "vulgar"
      ]
    },
    {
      "categories": [
        "Lexique en vietnamien de la chimie"
      ],
      "glosses": [
        "Réduire."
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\xɯ˧˨˧\\"
    }
  ],
  "word": "khử"
}