5BX

British

noun

a fitness exercise programme originally devised in the Canadian Air Force

"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

Etymology

Origin of 5BX

from 5 b ( asic ) ( e ) x ( ercises )

Example Sentences

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5BX

In the 1950s, the Royal Canadian Air Force devised a program called 5BX, or “Five Basic Exercises,” essentially a full-body workout designed to be completed in 11 to 12 minutes.

From Slate ● Apr. 19, 2022

There are six charts in 5BX, each with five exercises increasing in difficulty from chart to chart.

From Time Magazine Archive

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