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index
noun
-
index
,
indexes
,
indexing
,
indexed
a
list
of
key
words
,
names
,
or
topics
in
alphabetical
order
that
tells
you
on
which
page
each
one
can
be
found
in
a
book
•
At
the
end
of
the
textbook
,
I
found
the
index
and
quickly
located
the
chapter
on
volcanoes
.
At
the
end
of
the
textbook
,
I
found
the
index
and
quickly
located
the
chapter
on
volcanoes
.
•
Use
the
index
to
see
which
pages
mention
Albert
Einstein
.
Use
the
index
to
see
which
pages
mention
Albert
Einstein
.
From
Latin
‘
indicus
’
meaning
‘
pointer
’
or
‘
sign
’.
noun
-
index
,
indexes
,
indexing
,
indexed
a
number
that
shows
the
level
of
something
and
how
it
changes
over
time
,
such
as
prices
,
air
quality
,
or
stock
market
performance
•
The
consumer price index
rose
by
two
percent
last
month
.
The
consumer price index
rose
by
two
percent
last
month
.
•
A
falling
air quality index
warned
residents
to
stay
indoors
.
A
falling
air quality index
warned
residents
to
stay
indoors
.
Extended
sense
of
Latin
origin
‘
sign
;
pointer
’
adopted
in
19th-century
statistics
.
noun
-
index
,
indices
,
indexing
,
indexes
,
indexed
in
mathematics
,
a
small
raised
number
or
letter
written
to
the
right
of
another
symbol
to
show
powers
or
particular
positions
•
In
5²
,
the
2
is
called
the
index
or
exponent
.
In
5²
,
the
2
is
called
the
index
or
exponent
.
•
A
negative
index
means
you
should
take
a
reciprocal
.
A
negative
index
means
you
should
take
a
reciprocal
.
Adopted
into
mathematical
language
in
18th
century
from
Latin
‘
index
’
meaning
‘
sign
’.
verb
-
index
,
indexes
,
indexing
,
indexed
to
make
or
add
an
index
to
a
book
,
collection
,
or
database
so
information
can
be
found
easily
•
The
editor
hired
a
freelancer
to
index
the
new
biography
.
The
editor
hired
a
freelancer
to
index
the
new
biography
.
•
Software
automatically
indexes
each
PDF
in
the
archive
.
Software
automatically
indexes
each
PDF
in
the
archive
.
Verb
use
recorded
from
late
16th
century
,
directly
from
noun
sense
.
noun
-
index
,
indexes
,
indexing
,
indexed
a
special
data
structure
or
file
that
allows
a
computer
program
or
database
to
find
information
quickly
•
The
search
engine
rebuilt
its
index
overnight
to
include
new
websites
.
The
search
engine
rebuilt
its
index
overnight
to
include
new
websites
.
•
Without
an
index
,
the
database
query
would
take
minutes
instead
of
seconds
.
Without
an
index
,
the
database
query
would
take
minutes
instead
of
seconds
.
Borrowed
from
earlier
library
sense
;
applied
to
computing
in
the
mid-20th
century
.
noun
-
index
,
indexes
,
indexing
,
indexed
(
formal
)
the
index
finger
•
She
pointed
with
her
index
to
the
map
on
the
wall
.
She
pointed
with
her
index
to
the
map
on
the
wall
.
•
He
cut
his
index
while
slicing
vegetables
.
He
cut
his
index
while
slicing
vegetables
.
Middle
English
medical
writings
used
‘
index
’
for
the
pointing
finger
,
following
Latin
‘
digitus
index
’.
verb
-
index
,
indexes
,
indexing
,
indexed
to
change
wages
,
prices
,
or
other
values
automatically
in
line
with
a
chosen
economic
index
•
The
pension
payments
are
indexed
to
inflation
each
year
.
The
pension
payments
are
indexed
to
inflation
each
year
.
•
Many
contracts
index
salaries
to
the
cost-of-living index
.
Many
contracts
index
salaries
to
the
cost-of-living index
.
Economic
sense
popularized
in
the
20th
century
with
rise
of
price
indices
.
