Definition of all-in-one adjective from the Oxford Advanced American Dictionary

 

all-in-one

 adjective
adjective
 
[only before noun]
 
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able to do the work of two or more things that are usually separate an all-in-one shampoo and conditioner The all-in-one body suit looks great with jeans.
all-in-onenoun
 
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We sell printers and scanners, and all-in-ones that combine the two.