autumn

Từ điển Oxford Advanced Learner 8th

au·tumn [autumn autumns] BrE [ˈɔːtəm] NAmE [ˈɔːtəm] (especially BrE) (NAmE usually fall) noun uncountable, countable
the season of the year between summer and winter, when leaves change colour and the weather becomes colder
•in the autumn of 2010
•in early/late autumn
•the autumn term (= for example at a school or college in Britain)
•autumn colours/leaves
• It's been a very mild autumn this year.
See also: ↑fall

Word Origin:
late Middle English: from Old French autompne, or later directly from Latin autumnus.

Example Bank:
•Now is the time when the autumn colours/colors are at their best.
•The trees were beginning to turn orange and yellow with autumn colours.
•classes to be held for schoolchildren during the autumn term
•the sound of autumn leaves rustling
•their autumn collection of dresses