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FOS

American

Or F.O.S.

abbreviation

free on station.
free on steamer.
Slang. full of shit (a euphemistic initialism used to avoid explicit vulgarity). See shit.

FOS British

abbreviation

fructooligosaccharide: a chain polymer of fructose found in a variety of plants, vegetables, and fruits and used as a sweetener

"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.

FOS, which issues newsletters detailing different sports events and their business influence, said it has 35 million monthly reads for its newsletters.

From Reuters • Oct. 2, 2023

A source with knowledge of the situation told FOS that Bezos remains interested in NFL ownership.

From Fox News • Sep. 15, 2021

NF-Y coassociates with FOS at promoters, enhancers, repetitive elements, and inactive chromatin regions, and is stereo-positioned with growth-controlling transcription factors.

From Nature • Oct. 24, 2017

Personally, I don't agree with it and so, after years of support of WNT, I'm exercising my FOS and boycotting them until she and Ellis are gone.

From New York Times • Sep. 19, 2016

This would have cost the bank £500 each time in FOS administration fees and could, theoretically, have landed it with a bill of £115m if every customer had taken this route.

From BBC • Sep. 6, 2012

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