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

The couple has neither confirmed nor denied the happy event, but the tabloid did post pictures of Gaga carrying an infant in a sling on September 11. — Bethy Squires, Vulture, 12 Sep. 2026

They were charged in September 2021 and have been held in custody for years. — Arkansas Online, 12 Sep. 2026

Memories of September 11 are still overwhelming for many New Yorkers, but NY1 anchor Pat Kiernan finds value in looking back on that indelible day 25 years later. — Dade Hayes, Deadline, 11 Sep. 2026

For Barber, September and October departures are up by 53% and 45%, respectively, compared to August departures. — Matt Ortile, Condé Nast Traveler, 11 Sep. 2026

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

• crewmember
• 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.