communal

Compared meaning: shared by a group of people (adjective).

比较义项：公共的，供一群人共有、共用的（形容词）。

• public

  Public is the broadest term: it describes things provided for, run by, or open to society as a whole, often through the government, and contrasts with private.

  public是三者中含义最宽泛的词：指由政府提供、面向整个社会、任何人都可以使用的事物，与“私人的”相对。

  The new park is open to the public every weekend.

  这座新公园每个周末都向公众开放。

• common

  Common describes something jointly shared or owned by a group rather than by one person, without the government or whole-society implication of public; it often modifies land, property or abstract things like ground or interest.

  common强调由一群人共同拥有或分享，而不像public那样带有“由政府提供、面向全社会”的含义，常用来修饰土地、财产，或像共同立场这样的抽象事物。

  Despite their differences, the two sides found some common ground on this issue.

  尽管存在分歧，双方在这个问题上还是找到了一些共同点。

• communal 本词

  Communal specifically describes things shared by the members of a particular community or household rather than owned privately by each individual, and is common in the context of shared living spaces.

  communal特指由某个特定群体或同住的人共同使用，而不是各自私人拥有，常用于描述公寓、宿舍等共同生活空间中的共用设施。

  The apartment building has a communal garden for all residents.

  这栋公寓楼有一个供全体住户共用的花园。

Public, common and communal all mean shared, not private. Public describes things open to society as a whole, often by government. Common describes something jointly owned by a group. Communal describes things shared by members of one community, like housing. Common meaning 'frequent', not compared.

这三个词都可表示“公共的、共有的”，但侧重不同：public强调面向整个社会、常由政府提供；common强调由一群人共同拥有或分享，不一定涉及全社会；communal则强调由某个特定群体（如同住的人）共同使用，而非私人拥有。这里不比较common的“常见的”（发生频率高）这一义项。