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feedback
noun
-
feedback
opinions
or
comments
that
tell
someone
how
well
they
are
doing
and
how
they
can
improve
•
After
the
presentation
,
the
teacher
gave
Julia
helpful
feedback
on
her
speech
.
After
the
presentation
,
the
teacher
gave
Julia
helpful
feedback
on
her
speech
.
•
The
app
asks
users
to
send
feedback
so
the
developers
can
fix
problems
.
The
app
asks
users
to
send
feedback
so
the
developers
can
fix
problems
.
formed
from
the
words
feed
+
back
(
1940s
)
to
describe
returning
part
of
a
system
’
s
output
to
its
input
,
later
broadened
to
general
response
noun
-
feedback
a
loud
,
squealing
noise
that
happens
when
a
microphone
picks
up
sound
from
its
own
speaker
and
re-amplifies
it
•
When
the
guitarist
stood
too
close
to
the
amplifier
,
piercing
feedback
filled
the
hall
.
When
the
guitarist
stood
too
close
to
the
amplifier
,
piercing
feedback
filled
the
hall
.
•
The
sound
engineer
quickly
lowered
the
volume
to
stop
the
shrieking
feedback
.
The
sound
engineer
quickly
lowered
the
volume
to
stop
the
shrieking
feedback
.
borrowed
from
electronics
use
of
feedback
loops
;
the
unwanted
sound
is
caused
by
the
signal
feeding
back
into
the
system
noun
-
feedback
the
return
of
part
of
a
system
’
s
output
to
its
input
,
used
to
control
or
change
how
the
system
works
•
In
a
thermostat
,
temperature
feedback
keeps
the
room
comfortable
.
In
a
thermostat
,
temperature
feedback
keeps
the
room
comfortable
.
•
Scientists
study
climate
feedback
to
predict
future
warming
.
Scientists
study
climate
feedback
to
predict
future
warming
.
first
used
in
1920s
engineering
to
describe
control
loops
,
later
applied
in
many
sciences
verb
to
give
comments
or
information
back
to
someone
or
to
a
system
•
Please
feedback
your
thoughts
to
the
team
by
Friday
.
Please
feedback
your
thoughts
to
the
team
by
Friday
.
•
The
manager
asked
staff
to
feedback
any
safety
concerns
.
The
manager
asked
staff
to
feedback
any
safety
concerns
.
verb
use
developed
later
than
noun
,
turning
the
noun
into
an
action
meaning
“
to
give
feedback
”
