"side part" meaning in English

{
  "forms": [
    {
      "form": "side parts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "side part (plural side parts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Hair",
          "orig": "en:Hair",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A line on the left or right side of the head where the hair is separated; some hair is brushed to one side and the rest to the opposite side, breaking up the symmetry of a center part."
      ],
      "id": "en-side_part-en-noun-wWGAGQq-",
      "links": [
        [
          "center part",
          "center part"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) A line on the left or right side of the head where the hair is separated; some hair is brushed to one side and the rest to the opposite side, breaking up the symmetry of a center part."
      ],
      "related": [
        {
          "word": "center part"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "side part"
}

{
  "forms": [
    {
      "form": "side parts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "side part (plural side parts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "center part"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Hair"
      ],
      "glosses": [
        "A line on the left or right side of the head where the hair is separated; some hair is brushed to one side and the rest to the opposite side, breaking up the symmetry of a center part."
      ],
      "links": [
        [
          "center part",
          "center part"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) A line on the left or right side of the head where the hair is separated; some hair is brushed to one side and the rest to the opposite side, breaking up the symmetry of a center part."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "side part"
}