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

In Lebanon, at least 100,000 children risk missing out on school unless classrooms damaged by Israeli strikes are urgently repaired or rebuilt before September, the United Nations children’s agency UNICEF has warned. — Nadeen Ebrahim, CNN Money, 4 July 2026

The pop star was also a bridesmaid in Dunham's September 2021 wedding to Luis Felber. — Yamillah Hurtado, PEOPLE, 4 July 2026

Chiefs game Swift made headlines when she was photographed sitting next to Kelce's mom, Donna, at a Kansas City Chiefs game in September 2023. — Lori A Bashian, FOXNews.com, 3 July 2026

Prior to the release of Thursday's jobs report, markets had been giving a September rate hike a probability of around 65%. — Chloe Taylor, CNBC, 3 July 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.