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

This comes at a time when the country faces slowing growth, with India's most recent GDP reading coming in at 5.4% in its second fiscal quarter ending September, missing expectations and marking its lowest level since the last quarter of 2022. —Lim Hui Jie, CNBC, 9 Jan. 2025

Nasrallah was killed by an Israeli airstrike on Beirut in late September. —Tommy Tuberville, Newsweek, 9 Jan. 2025

Bakkt’s Bitcoin futures contracts finally hit the market in September 2019. —Dan Alexander, Forbes, 8 Jan. 2025

Garrison had been cooperating with federal authorities in their investigation before he was killed in September 2020, the outlet reported. —Christina Coulter, Fox News, 8 Jan. 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

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.