autumn

Compared meaning: the season between summer and winter (noun).

比较义项：秋天（名词）。

• fall

  In this sense, fall is the everyday word for the season in American English; British speakers use autumn instead and rarely say fall for the season.

  在这个意义上，fall是美式英语里表示这个季节的日常用词；英国人则用autumn，很少用fall来指这个季节。

  American schools often start a new fall semester in September.

  美国学校通常在九月开始新的fall学期。

• autumn 本词

  Autumn is the standard, neutral word for this season in British English, and it is also used in more formal or literary American writing.

  autumn是英式英语中表示这个季节的标准、中性用词，在更正式或文学性的美式英语写作中也会使用。

  In autumn, the parks in London fill with fallen leaves.

  在autumn，伦敦的公园里落满了枯叶。

Fall and autumn both mean this season. Fall is the everyday word in American English; British speakers say autumn instead. Autumn is the standard word in British English, also used in formal or literary American writing. Not compared: fall meaning a drop, or falling down.

这两个词都表示秋天这个季节，含义相同，但存在地域用法上的差异：fall是美式英语的说法，autumn是英式英语的说法（也用于较正式的美式英语）。这里不比较fall作动词表示“摔倒”的意思，也不比较fall作名词表示“下降、跌落”的意思。