A multifunction device, especially a printer that also works as a scanner and fax machine.(noun)
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Use "all-in-one" in a sentence
"Combination units called all-in-one or multifunction printers are great if you’re short on space, but be sure to test the features that are most important to you."
"On the evening of the Feud, Jenni turns up in an all-in-one black jumpsuit, and Wolfie is "dressed to kill in an electric-blue ska suit and white vinyl brothel-creepers with steel toecaps inlaid"."
"Q: Do you have any guidance about all-in-one touch-screen desktop PCs for the holiday buying season?"