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lock
verb
-
lock
,
locking
,
locks
,
locked
to
fasten
something
with
a
lock
so
it
cannot
be
opened
without
a
key
,
code
,
or
similar
method
•
Please
lock
the
front
door
before
you
go
to
bed
.
Please
lock
the
front
door
before
you
go
to
bed
.
•
She
always
locks
her
computer
screen
when
she
steps
away
from
her
desk
.
She
always
locks
her
computer
screen
when
she
steps
away
from
her
desk
.
Old
English
locian
‘
to
close
,
lock
’,
originally
‘
to
fasten
’.
noun
a
device
that
keeps
a
door
,
lid
,
or
container
closed
and
can
be
opened
only
with
a
key
,
code
,
or
similar
method
•
Mia
turned
the
key
and
heard
the
lock
click
open
.
Mia
turned
the
key
and
heard
the
lock
click
open
.
•
The
hotel
room
has
an
electronic
lock
that
lights
up
green
when
you
enter
the
right
code
.
The
hotel
room
has
an
electronic
lock
that
lights
up
green
when
you
enter
the
right
code
.
Old
English
loc
,
meaning
‘
barrier
,
fastening
’,
related
to
German
Loch
‘
hole
’.
noun
a
thick
or
curled
piece
of
hair
that
hangs
together
•
The
wind
blew
a
loose
lock
of
hair
across
her
face
.
The
wind
blew
a
loose
lock
of
hair
across
her
face
.
•
Grandma
keeps
a
silver
lock
from
her
wedding
day
in
a
small
locket
.
Grandma
keeps
a
silver
lock
from
her
wedding
day
in
a
small
locket
.
Middle
English
loc
,
from
Old
English
locc
,
meaning
‘
curl
of
hair
’.
verb
-
lock
,
locking
,
locks
,
locked
to
become
fixed
,
stuck
,
or
unable
to
move
or
change
•
The
wheels
can
lock
if
you
brake
too
hard
on
ice
.
The
wheels
can
lock
if
you
brake
too
hard
on
ice
.
•
The
file
will
lock
once
it
is
opened
by
another
user
.
The
file
will
lock
once
it
is
opened
by
another
user
.
Metaphorical
extension
from
‘
fasten
’
to
‘
become
immovable
’
first
noted
in
the
18th
century
.
noun
a
section
of
a
canal
with
gates
at
each
end
that
can
be
filled
or
emptied
of
water
to
raise
or
lower
boats
•
The
narrowboat
waited
in
the
lock
while
the
water
level
slowly
rose
.
The
narrowboat
waited
in
the
lock
while
the
water
level
slowly
rose
.
•
Tourists
watched
the
ship
pass
through
the
Panama
Canal
’
s
massive
locks
.
Tourists
watched
the
ship
pass
through
the
Panama
Canal
’
s
massive
locks
.
Sense
extended
from
the
idea
of
‘
fastening
’
to
‘
closed
section
of
waterway
’
in
the
15th
century
.
noun
in
rugby
union
,
one
of
the
two
players
who
pack
in
the
second
row
of
the
scrum
and
provide
power
in
pushing
•
The
team
’
s
tallest
player
was
chosen
as
a
lock
for
the
upcoming
match
.
The
team
’
s
tallest
player
was
chosen
as
a
lock
for
the
upcoming
match
.
•
During
the
scrum
,
the
locks
bind
tightly
behind
the
front
row
to
drive
the
push
.
During
the
scrum
,
the
locks
bind
tightly
behind
the
front
row
to
drive
the
push
.
Specialized
rugby
sense
recorded
from
the
late
19th
century
,
reflecting
the
position
’
s
role
in
‘
locking
’
the
scrum
together
.
block
noun
a
small
cube-shaped
toy
that
children
stack
or
build
with
•
The
toddler
built
a
tower
of
colorful
blocks
.
The
toddler
built
a
tower
of
colorful
blocks
.
•
One
red
block
rolled
under
the
sofa
.
One
red
block
rolled
under
the
sofa
.
noun
a
solid
,
usually
rectangular
piece
of
hard
material
such
as
wood
,
stone
,
or
metal
•
The
sculptor
carved
a
face
into
a
marble
block
.
The
sculptor
carved
a
face
into
a
marble
block
.
•
We
used
a
wooden
block
to
keep
the
door
open
.
We
used
a
wooden
block
to
keep
the
door
open
.
From
Old
French
‘
bloc
’,
of
Germanic
origin
,
related
to
Middle
Dutch
‘
blok
’
meaning
log
or
lump
.
noun
a
group
of
buildings
bounded
by
four
streets
in
a
town
or
city
•
The
bakery
is
two
blocks
away
from
the
station
.
The
bakery
is
two
blocks
away
from
the
station
.
•
They
live
on
the
same
block
as
the
school
.
They
live
on
the
same
block
as
the
school
.
verb
-
block
,
blocking
,
blocks
,
blocked
to
put
something
across
a
path
or
opening
so
that
nothing
can
pass
•
A
parked
truck
blocked
the
narrow
bridge
.
A
parked
truck
blocked
the
narrow
bridge
.
•
Please
don't
block
the
fire
exit
.
Please
don't
block
the
fire
exit
.
noun
a
solid
piece
of
hard
material
with
flat
sides
,
often
rectangular
in
shape
•
The
carpenter
placed
a
wooden
block
under
the
table
leg
to
stop
it
wobbling
.
The
carpenter
placed
a
wooden
block
under
the
table
leg
to
stop
it
wobbling
.
•
Ice
sculptors
carved
animals
out
of
a
huge
block
of
ice
at
the
festival
.
Ice
sculptors
carved
animals
out
of
a
huge
block
of
ice
at
the
festival
.
noun
the
distance
or
group
of
buildings
between
two
streets
in
a
town
or
city
•
There
is
a
bakery
on
the
next
block
if
you
want
fresh
bread
.
There
is
a
bakery
on
the
next
block
if
you
want
fresh
bread
.
•
Fire
engines
surrounded
the
entire
block
after
the
alarm
went
off
.
Fire
engines
surrounded
the
entire
block
after
the
alarm
went
off
.
noun
something
that
stops
movement
through
a
passage
or
flow
of
something
•
A
fallen
tree
created
a
block
in
the
narrow
road
.
A
fallen
tree
created
a
block
in
the
narrow
road
.
•
The
doctor
removed
a
block
in
the
patient's
artery
.
The
doctor
removed
a
block
in
the
patient's
artery
.
noun
in
sports
,
a
defensive
move
that
stops
the
opponent
or
the
ball
•
Her
powerful
block
prevented
the
spike
from
crossing
the
net
.
Her
powerful
block
prevented
the
spike
from
crossing
the
net
.
•
The
defender
made
a
crucial
block
in
the
final
seconds
.
The
defender
made
a
crucial
block
in
the
final
seconds
.
verb
-
block
,
blocking
,
blocks
,
blocked
to
stop
something
from
happening
or
developing
•
The
council
voted
to
block
the
new
law
.
The
council
voted
to
block
the
new
law
.
•
Sunscreen
helps
block
harmful
UV
rays
.
Sunscreen
helps
block
harmful
UV
rays
.
verb
-
block
,
blocking
,
blocks
,
blocked
to
stop
someone
from
contacting
you
on
the
internet
or
phone
•
She
blocked
him
on
social
media
after
the
argument
.
She
blocked
him
on
social
media
after
the
argument
.
•
If
you
keep
getting
spam
calls
,
you
can
block
the
number
.
If
you
keep
getting
spam
calls
,
you
can
block
the
number
.
noun
a
mental
or
emotional
difficulty
that
stops
you
from
thinking
clearly
or
doing
something
you
usually
can
•
He
stared
at
the
empty
page
,
suffering
from
writer
’
s
block
.
He
stared
at
the
empty
page
,
suffering
from
writer
’
s
block
.
•
A
sudden
mental
block
made
her
forget
the
answer
she
knew
yesterday
.
A
sudden
mental
block
made
her
forget
the
answer
she
knew
yesterday
.
verb
-
block
,
blocking
,
blocks
,
blocked
to
stop
something
from
moving
,
passing
,
or
happening
•
The
parked
truck
blocked
the
narrow
road
,
causing
a
traffic
jam
.
The
parked
truck
blocked
the
narrow
road
,
causing
a
traffic
jam
.
•
She
put
her
hand
up
to
block
the
bright
sunlight
.
She
put
her
hand
up
to
block
the
bright
sunlight
.
noun
a
mental
barrier
that
prevents
clear
thinking
or
remembering
•
She
had
a
writer's block
and
could
not
finish
the
story
.
She
had
a
writer's block
and
could
not
finish
the
story
.
•
Fear
created
a
mental
block
that
stopped
him
from
speaking
.
Fear
created
a
mental
block
that
stopped
him
from
speaking
.
noun
the
main
solid
part
of
an
engine
that
contains
the
cylinders
•
A
crack
in
the
engine
block
can
ruin
the
car
.
A
crack
in
the
engine
block
can
ruin
the
car
.
•
They
cleaned
the
block
before
reassembling
the
motor
.
They
cleaned
the
block
before
reassembling
the
motor
.
noun
a
fixed-size
piece
of
data
or
memory
treated
as
a
unit
in
computing
•
The
file
system
writes
information
in
4-kilobyte
blocks
.
The
file
system
writes
information
in
4-kilobyte
blocks
.
•
Each
block
on
the
blockchain
is
linked
to
the
previous
one
.
Each
block
on
the
blockchain
is
linked
to
the
previous
one
.
clock
noun
a
device
with
hands
,
digits
,
or
another
display
that
shows
the
current
time
•
The
antique
clock
on
the
mantel
chimed
at
noon
.
The
antique
clock
on
the
mantel
chimed
at
noon
.
•
He
glanced
at
the
wall
clock
and
realized
he
was
late
.
He
glanced
at
the
wall
clock
and
realized
he
was
late
.
From
Middle
English
‘
clokke
’,
borrowed
from
Middle
Dutch
‘
clocke
’
meaning
bell
,
later
referring
to
the
device
that
struck
a
bell
to
mark
the
hour
.
verb
-
clock
,
clocking
,
clocks
,
clocked
to
measure
or
record
the
time
or
speed
that
someone
or
something
achieves
•
The
runner
clocked
a
personal
best
of
two
hours
in
the
marathon
.
The
runner
clocked
a
personal
best
of
two
hours
in
the
marathon
.
•
Our
car
clocked
100
kilometers
per
hour
on
the
highway
.
Our
car
clocked
100
kilometers
per
hour
on
the
highway
.
Derived
from
the
noun
sense
;
first
used
in
the
early
20th
century
in
racing
to
mean
‘
measure
with
a
stopwatch
’.
verb
-
clock
,
clocking
,
clocks
,
clocked
to
hit
someone
hard
,
especially
in
the
face
,
usually
suddenly
•
The
boxer
suddenly
clocked
his
opponent
with
a
right
hook
.
The
boxer
suddenly
clocked
his
opponent
with
a
right
hook
.
•
After
being
insulted
,
Jenna
clocked
the
rude
stranger
in
the
jaw
.
After
being
insulted
,
Jenna
clocked
the
rude
stranger
in
the
jaw
.
20th-century
slang
,
possibly
from
the
idea
of
striking
as
hard
as
a
clock
’
s
hammer
hits
its
bell
.