USO

American

Or U.S.O.

United Service Organizations.

USO British

abbreviation

United Service Organization

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

According to an AI-assisted Google chart, the monthly mentions of USO — day traders’ favored oil play — rose sevenfold from July to 1400 in March on the WallStreetBets subreddit.

From The Wall Street Journal • Apr. 3, 2026

USO holds West Texas Intermediate crude oil futures contracts, along with swaps and cash instruments.

From Barron's • Mar. 21, 2026

Buying has been particularly pronounced over the past week — with USO, the biggest U.S. oil ETF, seeing its largest daily inflows on record.

From MarketWatch • Mar. 11, 2026

And after the U.S. entered World War II, she volunteered as a USO girl, dancing with young soldiers on the Santa Monica Pier, she said, “before they went overseas to God knows what.”

From Los Angeles Times • Jun. 29, 2025

The end of the war brought the closing of the King Street USO and the end of Mary’s job there.

From "Hidden Figures" by Margot Lee Shetterly

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023