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 Tacos and Tequila Festival — which serves up throwback hip-hop stars along with margaritas at Franklin Field — is coming back for its third year in 2025, and returning to its September window. —Piet Levy, Journal Sentinel, 22 Dec. 2024

Since the Fed cut interest rates by 50 basis points in September, bond yields have risen and remain stubbornly high. —Mike O'Sullivan, Forbes, 21 Dec. 2024

Getty Images Travelers can board any of the three Virgin ships currently sailing and the fourth ship, Brilliant Lady, which will launch in September 2025. —Celia Fernandez, CNBC, 21 Dec. 2024

The exchange, help spurred by a congressional committee, mirrored a similar swap in September in which U.S. citizen David Lin came home after nearly 20 years. —Gord Magill, Newsweek, 21 Dec. 2024

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

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.