"前衛" meaning in Japanese

{
  "forms": [
    {
      "form": "前衛",
      "ruby": [
        [
          "前",
          "ぜん"
        ],
        [
          "衛",
          "えい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "zen'ei",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ぜんえい"
      },
      "expansion": "前(ぜん)衛(えい) • (zen'ei)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "14 12 5 17 25 8 20",
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "9 8 3 11 35 6 28",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "36 29 36",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "38 26 36",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "42 25 33",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "22 40 38",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "41 27 32",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "vanguard (leading units of an army)"
      ],
      "id": "en-前衛-ja-noun-eowGF3F3",
      "links": [
        [
          "vanguard",
          "vanguard"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "36 29 36",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "38 26 36",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "22 40 38",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "forward (player nearest to the opposing soccer team), lineman (playing position in football), or similar positions in tennis, volleyball, and other sports"
      ],
      "id": "en-前衛-ja-noun-su~6c0W3",
      "links": [
        [
          "forward",
          "forward"
        ],
        [
          "lineman",
          "lineman"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "36 29 36",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "38 26 36",
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "22 40 38",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "avant-garde, vanguard (forefront of any group or movement)"
      ],
      "id": "en-前衛-ja-noun-d5IA9ft~",
      "links": [
        [
          "avant-garde",
          "avant-garde"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[d͡zẽ̞ɰ̃e̞ː]"
    }
  ],
  "word": "前衛"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant alt parameters",
    "Japanese links with redundant wikilinks",
    "Japanese nouns",
    "Japanese terms spelled with fifth grade kanji",
    "Japanese terms spelled with second grade kanji",
    "Japanese terms with 2 kanji",
    "Japanese terms with IPA pronunciation",
    "Japanese terms with IPA pronunciation missing pitch accent",
    "Japanese terms with redundant sortkeys",
    "Pages with 4 entries",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "前衛",
      "ruby": [
        [
          "前",
          "ぜん"
        ],
        [
          "衛",
          "えい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "zen'ei",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ぜんえい"
      },
      "expansion": "前(ぜん)衛(えい) • (zen'ei)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "vanguard (leading units of an army)"
      ],
      "links": [
        [
          "vanguard",
          "vanguard"
        ]
      ]
    },
    {
      "glosses": [
        "forward (player nearest to the opposing soccer team), lineman (playing position in football), or similar positions in tennis, volleyball, and other sports"
      ],
      "links": [
        [
          "forward",
          "forward"
        ],
        [
          "lineman",
          "lineman"
        ]
      ]
    },
    {
      "glosses": [
        "avant-garde, vanguard (forefront of any group or movement)"
      ],
      "links": [
        [
          "avant-garde",
          "avant-garde"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[d͡zẽ̞ɰ̃e̞ː]"
    }
  ],
  "word": "前衛"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "前衛"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "前衛",
  "trace": ""
}