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smarten

1 ENTRIES FOUND:
smarten /ˈsmɑɚtn̩/ verb
smartens; smartened; smartening
smarten
/ˈsmɑɚtn̩/
verb
smartens; smartened; smartening
Britannica Dictionary definition of SMARTEN

smarten up

[phrasal verb]
US
: to become more intelligent or aware : to become smarter
smarten (someone or something) up or smarten up (someone or something) : to make (someone or something) smarter or more aware
smarten (someone or something) up or smarten up (someone or something) : to make (someone or something) neat and attractive