toqus
Picture Dictionary
English
한국어
Register
Login
🔍
upgrade
verb
-
upgrade
,
upgrading
,
upgrades
,
upgraded
to
move
someone
or
something
to
a
higher
level
of
quality
,
value
,
rank
,
or
performance
•
The
airline
upgraded
us
to
first
class
after
our
flight
was
delayed
.
The
airline
upgraded
us
to
first
class
after
our
flight
was
delayed
.
•
I
need
to
upgrade
my
phone
because
its
battery
dies
quickly
.
I
need
to
upgrade
my
phone
because
its
battery
dies
quickly
.
From
up
+
grade
,
first
used
in
19th-century
American
English
to
describe
raising
a
railroad
track
to
a
higher
level
,
later
generalized
to
improvement
.
