autumn period; fall term
Refers to a defined period or academic term in autumn. Often used in educational or institutional contexts.
Registration for the autumn course is open until next week.
The university's fall term starts in September.
秋期 (the autumn term/season) is pronounced identically to 周期 (a recurring cycle) but has a completely unrelated meaning.
Compound of 秋 (autumn) and 期 (period, term).