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instrument
noun
a
device
that
produces
musical
sounds
when
it
is
played
•
Maya
practiced
the
instrument
every
evening
until
her
song
sounded
perfect
.
Maya
practiced
the
instrument
every
evening
until
her
song
sounded
perfect
.
•
The
school
bought
several
new
instruments
for
the
marching
band
.
The
school
bought
several
new
instruments
for
the
marching
band
.
noun
a
tool
or
piece
of
equipment
made
for
a
particular
delicate
or
scientific
task
•
The
surgeon
chose
a
fine
instrument
to
remove
the
tiny
splinter
.
The
surgeon
chose
a
fine
instrument
to
remove
the
tiny
splinter
.
•
Scientists
used
special
instruments
to
measure
the
volcano
’
s
gas
levels
.
Scientists
used
special
instruments
to
measure
the
volcano
’
s
gas
levels
.
noun
a
gauge
or
display
inside
a
vehicle
or
machine
that
shows
information
such
as
speed
,
temperature
,
or
pressure
•
The
pilot
checked
every
instrument
before
take-off
.
The
pilot
checked
every
instrument
before
take-off
.
•
A
warning
light
flashed
on
the
dashboard
instrument
when
the
engine
overheated
.
A
warning
light
flashed
on
the
dashboard
instrument
when
the
engine
overheated
.
noun
someone
or
something
that
serves
as
a
means
of
achieving
a
goal
or
causing
something
to
happen
•
Education
can
be
an
instrument
of
social
change
.
Education
can
be
an
instrument
of
social
change
.
•
The
detective
believed
fear
was
the
murderer
’
s
chief
instrument
.
The
detective
believed
fear
was
the
murderer
’
s
chief
instrument
.
noun
an
official
legal
or
financial
document
such
as
a
contract
,
bond
,
or
certificate
•
The
parties
signed
the
instrument
in
the
presence
of
two
witnesses
.
The
parties
signed
the
instrument
in
the
presence
of
two
witnesses
.
•
A
deed
is
an
instrument
that
transfers
ownership
of
property
.
A
deed
is
an
instrument
that
transfers
ownership
of
property
.
verb
-
instrument
,
instrumenting
,
instruments
,
instrumented
to
equip
something
with
measuring
devices
or
controls
•
Engineers
will
instrument
the
bridge
to
monitor
stress
during
the
test
.
Engineers
will
instrument
the
bridge
to
monitor
stress
during
the
test
.
•
The
research
team
instrumented
the
spacecraft
with
temperature
probes
.
The
research
team
instrumented
the
spacecraft
with
temperature
probes
.