September
sep-TEM-bur/sɛpˈtɛmbɚ/UKsep-TEM-buh/sɛpˈtɛmbə/
- 1The ninth month of the year, coming after August and before October.
School starts again in September after the summer break.
The leaves begin to change color in September.
UsageWrite it with a capital S. Say in September.
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Origin
It comes from Latin September, which means "seventh month," from Latin septem meaning "seven." September was the seventh month in the old Roman calendar.