A political term for a communist party, either a specific party named 共産党 in context or part of a fuller name such as 中国共産党.
In that country, the Communist Party holds power.
彼女は共産党の政策について研究している。
She is researching the policies of the Communist Party.
He joined the Communist Party when he was a student.
After the war, a Communist Party was also formed in Japan.
Her father was a member of the Communist Party.
In this country, the Communist Party has held power for many years.