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.
Prosecutors played soundless footage of him that night, wearing a maroon shirt, dark hat, jeans and Converse shoes, and he was transported back to Utah County and formally booked on 12 September.
From BBC • Jul. 11, 2026
In September 2025, Ruby Mora, a 34-year-old from Pennsylvania, packed her bags and moved to the Netherlands with her husband.
From Salon • Jul. 11, 2026
In September, Tan overhauled Intel’s reporting structure and established a new Central Engineering Group, hiring Srinivasan Iyengar, the top silicon engineer at Cadence, to consolidate custom chip design efforts under one team.
From The Wall Street Journal • Jul. 11, 2026
BofA Global in early July maintained its call for three rate hikes, starting in September.
From MarketWatch • Jul. 10, 2026
Then, if that were the charge and if they included the time served at Scheveningen, September 1 would be our release date!
From "The Hiding Place" by Corrie ten Boom
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.
