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trailer
noun
a
vehicle
or
wheeled
platform
that
is
pulled
by
a
car
,
truck
,
or
tractor
to
move
goods
,
animals
,
or
equipment
•
The
farmer
loaded
hay
bales
onto
the
trailer
behind
his
tractor
.
The
farmer
loaded
hay
bales
onto
the
trailer
behind
his
tractor
.
•
We
attached
a
small
trailer
to
the
car
for
our
camping
trip
.
We
attached
a
small
trailer
to
the
car
for
our
camping
trip
.
From
trail
+
-er
,
first
recorded
in
the
late
19th
century
for
wagons
pulled
behind
motor
vehicles
noun
a
short
promotional
video
that
shows
exciting
parts
of
a
future
movie
,
TV
program
,
or
game
to
attract
an
audience
•
The
action
film
’
s
trailer
got
millions
of
views
online
.
The
action
film
’
s
trailer
got
millions
of
views
online
.
•
After
seeing
the
scary
trailer
,
Maya
decided
not
to
watch
the
horror
movie
.
After
seeing
the
scary
trailer
,
Maya
decided
not
to
watch
the
horror
movie
.
First
applied
to
film
advertising
in
the
early
20th
century
because
they
originally
trailed
after
the
main
feature
noun
a
large
vehicle
or
structure
on
wheels
,
often
placed
in
a
park
,
that
people
use
as
a
permanent
or
semi-permanent
home
•
They
bought
a
trailer
in
Florida
and
spend
winters
there
.
They
bought
a
trailer
in
Florida
and
spend
winters
there
.
•
The
storm
damaged
several
trailers
in
the
park
.
The
storm
damaged
several
trailers
in
the
park
.
Extension
of
the
vehicle
sense
;
U
.
S
.
usage
from
the
1930s
when
house
trailers
became
popular
for
affordable
housing
noun
extra
data
placed
at
the
end
of
a
computer
file
or
message
that
carries
control
information
or
marks
where
it
finishes
•
The
network
packet
includes
a
header
and
a
trailer
for
error
checking
.
The
network
packet
includes
a
header
and
a
trailer
for
error
checking
.
•
Removing
the
corrupted
trailer
fixed
the
video
file
.
Removing
the
corrupted
trailer
fixed
the
video
file
.
Adopted
by
computer
engineers
by
analogy
with
the
section
that
comes
after
(
trails
)
the
main
data
block