- an undergarment that combines a girdle and brassiere in one piece.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for all-in-one
Smartphones were just a much better, more convenient, all-in-one version of a bunch of popular devices.Is Wearable Technology a Fad or the Future?
January 9, 2014
Book a room at a divorce hotel and get an all-in-one luxury vacation and finalized separation.Book a Vacation at a Divorce Hotel and End Your Marriage in Luxury
July 18, 2013
It took a good while to convince the woman that the All-in-One was worth it, but she yielded out of pity for his hungry state.
This was the kindest reception that Lambert had received since taking to the road to found his fortunes on the All-in-One.
The young man who had humorously enumerated the virtues of the All-in-One, whom the others called Spence, was of this number.