"hair extension" meaning in English

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ja",
            "2": "エクステンション",
            "bor": "1"
          },
          "expansion": "→ Japanese: エクステンション",
          "name": "desc"
        }
      ],
      "text": "→ Japanese: エクステンション"
    }
  ],
  "forms": [
    {
      "form": "hair extensions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hair extension (plural hair extensions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Cosmetics",
          "orig": "en:Cosmetics",
          "parents": [
            "Fashion",
            "Toiletries",
            "Clothing",
            "Culture",
            "Hygiene",
            "Human",
            "Society",
            "Health",
            "All topics",
            "Body",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Hair",
          "orig": "en:Hair",
          "parents": [
            "Body parts",
            "Body",
            "Anatomy",
            "Human",
            "Biology",
            "Medicine",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A length of hair which is attached to one's normal hair to make it longer."
      ],
      "id": "en-hair_extension-en-noun-mDGfBDn6",
      "links": [
        [
          "attached",
          "attached"
        ]
      ],
      "translations": [
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "ekusutenshon",
          "sense": "a length of hair",
          "word": "エクステンション"
        },
        {
          "code": "ja",
          "english": "shorten",
          "lang": "Japanese",
          "roman": "ekusute",
          "sense": "a length of hair",
          "word": "エクステ"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "a length of hair",
          "tags": [
            "masculine"
          ],
          "word": "aplique"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "a length of hair",
          "word": "extensión"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "a length of hair",
          "tags": [
            "common-gender"
          ],
          "word": "hårförlängning"
        }
      ]
    }
  ],
  "word": "hair extension"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ja",
            "2": "エクステンション",
            "bor": "1"
          },
          "expansion": "→ Japanese: エクステンション",
          "name": "desc"
        }
      ],
      "text": "→ Japanese: エクステンション"
    }
  ],
  "forms": [
    {
      "form": "hair extensions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hair extension (plural hair extensions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Cosmetics",
        "en:Hair"
      ],
      "glosses": [
        "A length of hair which is attached to one's normal hair to make it longer."
      ],
      "links": [
        [
          "attached",
          "attached"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "ekusutenshon",
      "sense": "a length of hair",
      "word": "エクステンション"
    },
    {
      "code": "ja",
      "english": "shorten",
      "lang": "Japanese",
      "roman": "ekusute",
      "sense": "a length of hair",
      "word": "エクステ"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "a length of hair",
      "tags": [
        "masculine"
      ],
      "word": "aplique"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "a length of hair",
      "word": "extensión"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "a length of hair",
      "tags": [
        "common-gender"
      ],
      "word": "hårförlängning"
    }
  ],
  "word": "hair extension"
}