"bit part" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "bit",
        "3": "part",
        "nocat": "1"
      },
      "expansion": "bit + part",
      "name": "af"
    }
  ],
  "etymology_text": "From bit + part.",
  "forms": [
    {
      "form": "bit parts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bit part (plural bit parts)",
      "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"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Acting",
          "orig": "en:Acting",
          "parents": [
            "Art",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "2005, Most of her work, however, consisted of bit parts. She often was cast in movies credited only as \"flower vendor,\" \"warden\" or \"suntan lady,\" — 'Five Easy Pieces' waitress dead at 85, CNN online."
        }
      ],
      "glosses": [
        "A minor role, generally not assigned a name."
      ],
      "id": "en-bit_part-en-noun-UK~td8c4",
      "links": [
        [
          "acting",
          "acting#Noun"
        ],
        [
          "role",
          "role"
        ]
      ],
      "raw_glosses": [
        "(acting) A minor role, generally not assigned a name."
      ],
      "related": [
        {
          "word": "bit player"
        }
      ],
      "topics": [
        "acting",
        "broadcasting",
        "entertainment",
        "film",
        "lifestyle",
        "media",
        "television",
        "theater"
      ],
      "translations": [
        {
          "code": "it",
          "lang": "Italian",
          "sense": "a minor role",
          "tags": [
            "feminine"
          ],
          "word": "particina"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "a minor role",
          "tags": [
            "masculine"
          ],
          "word": "ruolo secondario"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "a minor role",
          "tags": [
            "masculine"
          ],
          "word": "ruolo minore"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "a minor role",
          "tags": [
            "masculine"
          ],
          "word": "generico"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "epizodíčeskaja rólʹ",
          "sense": "a minor role",
          "tags": [
            "feminine"
          ],
          "word": "эпизоди́ческая ро́ль"
        }
      ],
      "wikipedia": [
        "bit part"
      ]
    }
  ],
  "word": "bit part"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "bit",
        "3": "part",
        "nocat": "1"
      },
      "expansion": "bit + part",
      "name": "af"
    }
  ],
  "etymology_text": "From bit + part.",
  "forms": [
    {
      "form": "bit parts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "bit part (plural bit parts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "bit player"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Acting"
      ],
      "examples": [
        {
          "text": "2005, Most of her work, however, consisted of bit parts. She often was cast in movies credited only as \"flower vendor,\" \"warden\" or \"suntan lady,\" — 'Five Easy Pieces' waitress dead at 85, CNN online."
        }
      ],
      "glosses": [
        "A minor role, generally not assigned a name."
      ],
      "links": [
        [
          "acting",
          "acting#Noun"
        ],
        [
          "role",
          "role"
        ]
      ],
      "raw_glosses": [
        "(acting) A minor role, generally not assigned a name."
      ],
      "topics": [
        "acting",
        "broadcasting",
        "entertainment",
        "film",
        "lifestyle",
        "media",
        "television",
        "theater"
      ],
      "wikipedia": [
        "bit part"
      ]
    }
  ],
  "translations": [
    {
      "code": "it",
      "lang": "Italian",
      "sense": "a minor role",
      "tags": [
        "feminine"
      ],
      "word": "particina"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "a minor role",
      "tags": [
        "masculine"
      ],
      "word": "ruolo secondario"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "a minor role",
      "tags": [
        "masculine"
      ],
      "word": "ruolo minore"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "a minor role",
      "tags": [
        "masculine"
      ],
      "word": "generico"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "epizodíčeskaja rólʹ",
      "sense": "a minor role",
      "tags": [
        "feminine"
      ],
      "word": "эпизоди́ческая ро́ль"
    }
  ],
  "word": "bit part"
}