buff up
English
Verb
buff
up
(
transitive
,
idiomatic
)
to
improve
(
transitive
)
to
shine
; to make
shiny
(
intransitive
,
idiomatic
)
to become more
muscular
(
intransitive
,
idiomatic
)
to study hard to learn a particular subject
I'll need to
buff up
on my Italian before my trip to Genoa.
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