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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
.
noun
a
new
improved
version
of
something
,
or
the
act
of
improving
it
•
The
free
software
upgrade
fixed
all
the
bugs
.
The
free
software
upgrade
fixed
all
the
bugs
.
•
Our
kitchen
got
a
major
upgrade
with
new
stainless
steel
appliances
.
Our
kitchen
got
a
major
upgrade
with
new
stainless
steel
appliances
.
Derived
from
the
verb
sense
in
the
mid-20th
century
to
mean
the
result
of
upgrading
.
noun
a
section
of
road
,
track
,
or
path
that
slopes
upward
•
The
cyclists
slowed
down
on
the
steep
upgrade
near
the
finish
line
.
The
cyclists
slowed
down
on
the
steep
upgrade
near
the
finish
line
.
•
The
truck
struggled
to
climb
the
long
upgrade
out
of
the
valley
.
The
truck
struggled
to
climb
the
long
upgrade
out
of
the
valley
.
Originally
19th-century
American
railroad
jargon
combining
up
+
grade
to
describe
a
rising
track
.
