September

noun

Sep·​tem·​ber sep-ˈtem-bər 

səp-

: the ninth month of the Gregorian calendar

Examples of September in a Sentence

The weather has been very mild during the past two Septembers.

Recent Examples on the Web

Slated to hit select theaters August 22 before arriving on Apple TV+ on September 5, Highest 2 Lowest is written by Alan Fox and Lee. —Zac Ntim, Deadline, 20 May 2025

As previously announced, Tandem has the film in France, and September Film has it in Benelux. —Leo Barraclough, Variety, 20 May 2025

The singer-songwriter will also make seven stops in the U.K. in September. —Larisha Paul, Rolling Stone, 20 May 2025

Favre was called to testify in front of the U.S. Congress House Ways and Means Committee in September 2024. —Sean Neumann, People.com, 20 May 2025

Word History

Etymology

Middle English Septembre, from Anglo-French & Old English, both from Latin September (seventh month), from septem seven — more at seven

First Known Use

before the 12th century, in the meaning defined above

Rhymes for September

• december
• dismember
• nonmember
• november
• remember
• ember
• member

Kids Definition

September

noun

Sep·​tem·​ber sep-ˈtem-bər 

səp-

: the ninth month of the year

Etymology

Middle English Septembre "the month of September," from Old English September and early French Septembre (both, same meaning), both from Latin September "the seventh month," from septem "seven"

Word Origin

The ancient Romans originally used a calendar which began the year with the month of March. The seventh month of the year was called September, from septem, a Latin word meaning "seven." The name was spelled Septembre when it was borrowed from early French into Middle English, but eventually the English spelling was changed to that of the original Latin.