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standard
noun
a
level
of
quality
or
achievement
that
people
accept
as
normal
,
good
,
or
required
•
The
school
expects
every
student
to
reach
the
standard
in
math
before
graduating
.
The
school
expects
every
student
to
reach
the
standard
in
math
before
graduating
.
•
Safety
standards
in
the
factory
have
improved
after
the
new
rules
.
Safety
standards
in
the
factory
have
improved
after
the
new
rules
.
From
Old
French
“
estandart
”
meaning
‘
flag
,
rallying
place
’,
later
developing
the
sense
of
‘
criterion
’.
noun
a
level
of
quality
or
achievement
that
people
generally
accept
as
good
or
satisfactory
•
The
restaurant
maintained
high
standards
of
cleanliness
.
The
restaurant
maintained
high
standards
of
cleanliness
.
•
By
her
standard
,
the
painting
was
perfect
.
By
her
standard
,
the
painting
was
perfect
.
From
Old
French
estandart
,
originally
meaning
a
rallying
flag
,
later
figuratively
"
something
that
stands
to
be
compared
."
noun
an
official
unit
of
measurement
or
a
physical
example
kept
as
a
fixed
reference
•
The
kilogram
kept
in
Paris
is
the
international
standard
for
mass
.
The
kilogram
kept
in
Paris
is
the
international
standard
for
mass
.
•
Engineers
use
a
voltage
standard
to
calibrate
their
instruments
.
Engineers
use
a
voltage
standard
to
calibrate
their
instruments
.
Adopted
in
scientific
use
during
the
18th
century
from
the
idea
of
a
fixed
flagpole
marker
.
noun
an
officially
agreed
rule
,
specification
,
or
set
of
technical
requirements
that
must
be
followed
•
All
helmets
must
meet
safety
standards
.
All
helmets
must
meet
safety
standards
.
•
The
ISO
standard
for
paper
size
is
called
A4
.
The
ISO
standard
for
paper
size
is
called
A4
.
noun
a
flag
,
especially
one
carried
on
a
pole
in
battle
,
that
represents
a
nation
,
army
,
or
group
•
The
knights
marched
under
the
king
’
s
standard
,
a
lion
on
a
red
field
.
The
knights
marched
under
the
king
’
s
standard
,
a
lion
on
a
red
field
.
•
When
the
standard
fell
,
the
soldiers
knew
the
battle
was
lost
.
When
the
standard
fell
,
the
soldiers
knew
the
battle
was
lost
.
Middle
English
from
Old
French
“
estandart
”,
originally
meaning
a
rallying
flag
in
battle
.
noun
a
flag
or
banner
carried
by
a
group
,
especially
a
military
unit
,
as
its
symbol
•
Soldiers
marched
under
the
king's
standard
.
Soldiers
marched
under
the
king's
standard
.
•
The
horse
carried
the
regiment's
standard
in
the
parade
.
The
horse
carried
the
regiment's
standard
in
the
parade
.