September
Americannoun
noun
Usage
What is September? September is the ninth month of the year in the Gregorian calendar. It has 30 days and is between August and October. In the Northern Hemisphere, September is known as the first month of the autumn season, while in the Southern Hemisphere, it’s the first month of the spring season. Much of the world celebrates International Workers Day in May, but in the United States and Canada, a similar celebration, called Labor Day, is held. It is celebrated on the first Monday of September. The Jewish holiday Rosh Hashanah, which marks the beginning of the year, is normally held in September. The holiday’s exact date changes because it is set according to the Hebrew calendar, which is based on the Moon’s cycle. Example: For many people, September is a calm month before the holidays in October, November, and December.
Other Word Forms
Etymology
Origin of September
First recorded before 1050; Middle English Septembre, Old English, from Latin September “seventh month” in the early Roman calendar; for formation see December
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Leavitt told journalists that she would still join the president at a Republican convention in Dallas, Texas, in early September, ahead of November's midterm elections.
From Barron's ● Aug. 22, 2026
Both are heading to university in September, but neither will be moving into student accommodation.
From BBC ● Aug. 21, 2026
The following year, the fest was moved to September, but Hurricane Ida forced promoters to cancel after heavy rain turned the Farm — the festival’s venue — into a muddy mess.
From Los Angeles Times ● Aug. 21, 2026
Germany will tap the September 2028 Schatz on Tuesday, while it will reopen May 2041- and August 2048-dated Bunds on Wednesday.
From The Wall Street Journal ● Aug. 21, 2026
It's almost four-thirty in the afternoon on September 13, 1848.
From "Phineas Gage" by John Fleischman
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
