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.
Despite the absence of signs that wage growth is accelerating, investors expect the ECB to raise its key interest rate for a second time since the conflict began when policymakers next meet in September.
From The Wall Street Journal ● Jul. 29, 2026
Ofgem has started a consultation on its proposals, which will run until 16 September.
From BBC ● Jul. 29, 2026
The group is expected to approve another production increase of around 188,000 barrels a day for September, matching the hikes agreed for June, July and August, according to some market watchers.
From The Wall Street Journal ● Jul. 29, 2026
But any extension is unlikely before September because the House of Representatives has already left Washington for its summer recess.
From Barron's ● Jul. 28, 2026
On September 12, 1862, Confederate forces met the Union army at Antietam, Maryland.
From "American Spirits" by Barb Rosenstock
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.
