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.
“The company is expected to unveil its IPO financial-disclosure documents in the next few weeks. That could set it up to go public as soon as September or early October,” the Journal reports.
From The Wall Street Journal ● Aug. 26, 2026
But in September 1953, rationing ended and people started eating a lot more sugar.
From Science Daily ● Aug. 26, 2026
Production is now expected to be 30.6 million tonnes in the current season, which runs from October 2025 to September 2026 - 11% below the government's earlier estimate of 34.3 million tonnes.
From BBC ● Aug. 26, 2026
The slowdown in July could point to softer growth in the third quarter running from July through September.
From MarketWatch ● Aug. 26, 2026
In September, the British introduced their new weapon, the tank, without much success.
From "The War to End All Wars: World War I" by Russell Freedman
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.
