smartens; smartened; smartening
smartens; smartened; smartening
Learner's definition of SMARTEN
smarten up
[phrasal verb] 1 US
a : to become more intelligent or aware : to become smarter变得更聪明;变得更机敏 b smarten (someone or something) up or smarten up (someone or something) : to make (someone or something) smarter or more aware使更聪明;使更机敏 2
smarten (someone or something) up or smarten up (someone or something) : to make (someone or something) neat and attractive使整洁;使漂亮