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trail
noun
a
rough
track
or
pathway
,
especially
through
the
countryside
,
forest
,
or
mountains
,
that
people
or
animals
follow
.
•
The
hikers
followed
the
narrow
trail
up
the
mountain
to
reach
the
lake
.
The
hikers
followed
the
narrow
trail
up
the
mountain
to
reach
the
lake
.
•
A
well-marked
trail
runs
behind
the
campsite
and
loops
back
after
three
miles
.
A
well-marked
trail
runs
behind
the
campsite
and
loops
back
after
three
miles
.
From
Middle
English
traille
,
from
Old
French
trailler
“
to
tow
,
drag
,”
from
Vulgar
Latin
*tragulare
,
frequentative
of
Latin
trahere
“
to
pull
.”
noun
a
series
of
signs
,
marks
,
smells
,
or
clues
that
someone
or
something
leaves
behind
as
it
moves
.
•
The
detectives
followed
a
muddy
trail
of
footprints
to
the
back
door
.
The
detectives
followed
a
muddy
trail
of
footprints
to
the
back
door
.
•
The
ants
formed
a
living
trail
from
the
sugar
bowl
to
their
nest
.
The
ants
formed
a
living
trail
from
the
sugar
bowl
to
their
nest
.
noun
a
long
thin
line
or
stream
left
behind
by
a
moving
object
,
such
as
smoke
,
vapor
,
or
light
.
•
The
plane
left
a
white
trail
of
vapor
across
the
clear
blue
sky
.
The
plane
left
a
white
trail
of
vapor
across
the
clear
blue
sky
.
•
A
glowing
trail
of
sparks
followed
the
firework
as
it
arced
overhead
.
A
glowing
trail
of
sparks
followed
the
firework
as
it
arced
overhead
.
verb
-
trail
,
trailing
,
trails
,
trailed
to
pull
or
let
something
hang
so
that
it
drags
along
the
ground
behind
you
.
•
She
trailed
her
scarf
in
the
snow
without
noticing
.
She
trailed
her
scarf
in
the
snow
without
noticing
.
•
The
little
boy
trailed
his
toy
truck
by
a
string
across
the
yard
.
The
little
boy
trailed
his
toy
truck
by
a
string
across
the
yard
.
verb
-
trail
,
trailing
,
trails
,
trailed
to
move
slowly
or
fall
behind
others
because
you
are
tired
or
slower
.
•
The
children
trailed
behind
their
teacher
during
the
museum
tour
.
The
children
trailed
behind
their
teacher
during
the
museum
tour
.
•
I
started
to
trail
after
the
fourth
mile
of
the
race
.
I
started
to
trail
after
the
fourth
mile
of
the
race
.
verb
-
trail
,
trailing
,
trails
,
trailed
to
be
behind
an
opponent
in
points
,
votes
,
or
progress
.
•
Our
team
trailed
by
two
goals
at
halftime
.
Our
team
trailed
by
two
goals
at
halftime
.
•
The
candidate
still
trails
her
rival
in
the
latest
polls
.
The
candidate
still
trails
her
rival
in
the
latest
polls
.
noun
a
record
or
sequence
of
evidence
that
shows
what
someone
has
done
or
how
something
happened
,
especially
in
documents
or
data
.
•
The
email
trail
revealed
who
had
approved
the
payment
.
The
email
trail
revealed
who
had
approved
the
payment
.
•
Hackers
tried
to
erase
their
digital
trail
,
but
the
security
team
found
it
.
Hackers
tried
to
erase
their
digital
trail
,
but
the
security
team
found
it
.
verb
-
trail
,
trailing
,
trails
,
trailed
to
grow
or
hang
downward
or
over
a
surface
in
a
loose
line
.
•
Ivy
trailed
down
the
old
brick
wall
.
Ivy
trailed
down
the
old
brick
wall
.
•
Her
long
hair
trailed
over
her
shoulders
.
Her
long
hair
trailed
over
her
shoulders
.
verb
-
trail
,
trailing
,
trails
,
trailed
to
secretly
follow
someone
in
order
to
find
out
where
they
go
or
what
they
do
.
•
The
private
detective
trailed
the
suspect
for
three
days
.
The
private
detective
trailed
the
suspect
for
three
days
.
•
Police
cars
trailed
the
stolen
van
along
the
highway
.
Police
cars
trailed
the
stolen
van
along
the
highway
.
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