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action
noun
the
process
of
doing
something
rather
than
just
thinking
or
talking
about
it
•
We
need
less
talk
and
more
action
if
we
want
to
finish
on
time
.
We
need
less
talk
and
more
action
if
we
want
to
finish
on
time
.
•
Watching
the
puppies
tumble
over
each
other
was
nonstop
action
.
Watching
the
puppies
tumble
over
each
other
was
nonstop
action
.
From
Latin
actiō
meaning
"
a
doing
,
performing
".
reaction
noun
something
you
do
,
say
,
or
feel
because
something
else
has
happened
or
been
said
•
When
she
heard
the
surprise
news
,
her
first
reaction
was
to
laugh
.
When
she
heard
the
surprise
news
,
her
first
reaction
was
to
laugh
.
•
The
dog's
quick
reaction
saved
it
from
the
falling
branch
.
The
dog's
quick
reaction
saved
it
from
the
falling
branch
.
from
French
réaction
,
from
Late
Latin
reactio
,
from
re-
back
+
actio
action
noun
a
process
in
which
one
or
more
substances
change
into
new
substances
•
Rust
forming
on
iron
is
a
slow
chemical
reaction
.
Rust
forming
on
iron
is
a
slow
chemical
reaction
.
•
The
science
teacher
mixed
vinegar
and
baking
soda
to
show
a
bubbling
reaction
.
The
science
teacher
mixed
vinegar
and
baking
soda
to
show
a
bubbling
reaction
.
extended
scientific
sense
recorded
in
the
17th
century
as
chemistry
developed
noun
a
force
equal
in
size
and
opposite
in
direction
to
another
force
•
When
you
push
on
the
wall
,
the
wall
pushes
back
with
an
equal
reaction
.
When
you
push
on
the
wall
,
the
wall
pushes
back
with
an
equal
reaction
.
•
A
rocket
moves
upward
because
the
exhaust
gases
create
a
downward
reaction
.
A
rocket
moves
upward
because
the
exhaust
gases
create
a
downward
reaction
.
physics
sense
formalized
in
the
17th
century
by
Isaac
Newton
noun
strong
opposition
to
social
or
political
change
,
favoring
traditional
ideas
•
The
new
law
met
fierce
reaction
from
conservative
groups
.
The
new
law
met
fierce
reaction
from
conservative
groups
.
•
History
shows
that
progressive
movements
often
face
equal
and
opposite
reaction
.
History
shows
that
progressive
movements
often
face
equal
and
opposite
reaction
.
political
sense
arose
in
the
early
19th
century
after
the
French
Revolution
to
describe
forces
resisting
change
interaction
noun
the
act
of
people
communicating
or
doing
things
together
so
that
they
influence
one
another
•
The
teacher
encouraged
more
interaction
between
students
during
group
projects
.
The
teacher
encouraged
more
interaction
between
students
during
group
projects
.
•
After
moving
abroad
,
daily
interaction
with
locals
helped
him
learn
the
language
faster
.
After
moving
abroad
,
daily
interaction
with
locals
helped
him
learn
the
language
faster
.
From
Latin
inter-
(“
between
”)
+
actio
(“
doing
,
action
”),
meaning
things
that
act
upon
each
other
.
noun
a
situation
in
which
two
or
more
things
affect
and
change
each
other
•
The
doctor
warned
that
the
interaction
between
the
two
medicines
could
cause
dizziness
.
The
doctor
warned
that
the
interaction
between
the
two
medicines
could
cause
dizziness
.
•
Scientists
are
studying
the
interaction
of
climate
and
ocean
currents
.
Scientists
are
studying
the
interaction
of
climate
and
ocean
currents
.
Same
origin
as
the
general
sense
,
with
scientific
use
expanding
in
the
1800s
as
experimental
chemistry
grew
.
noun
in
physics
,
one
of
the
fundamental
forces
that
act
between
particles
or
fields
•
The
electromagnetic
interaction
holds
electrons
around
the
nucleus
.
The
electromagnetic
interaction
holds
electrons
around
the
nucleus
.
•
Gravity
is
the
weakest
fundamental
interaction
,
but
it
shapes
the
universe
.
Gravity
is
the
weakest
fundamental
interaction
,
but
it
shapes
the
universe
.
Adopted
in
modern
physics
in
the
20th
century
to
describe
the
four
forces
forming
the
Standard
Model
.
satisfaction
noun
a
happy
or
content
feeling
you
get
when
something
you
wanted
or
hoped
for
happens
or
is
achieved
•
Maria
smiled
with
deep
satisfaction
after
handing
in
her
finished
painting
.
Maria
smiled
with
deep
satisfaction
after
handing
in
her
finished
painting
.
•
The
team
shouted
in
satisfaction
when
the
final
whistle
confirmed
their
victory
.
The
team
shouted
in
satisfaction
when
the
final
whistle
confirmed
their
victory
.
From
Latin
satisfactio
,
meaning
‘
a
making
enough
,
a
fulfilling
’.
noun
formal
:
the
payment
of
a
debt
,
claim
,
or
penalty
so
that
an
obligation
is
fully
settled
•
The
borrower
made
full
satisfaction
of
the
loan
before
the
deadline
.
The
borrower
made
full
satisfaction
of
the
loan
before
the
deadline
.
•
Upon
satisfaction
of
the
judgment
,
the
court
lifted
the
lien
on
her
property
.
Upon
satisfaction
of
the
judgment
,
the
court
lifted
the
lien
on
her
property
.
transaction
noun
the
act
or
instance
of
buying
,
selling
,
or
exchanging
goods
,
services
,
or
money
•
Using
her
phone
,
Mia
completed
the
transaction
for
the
concert
tickets
in
seconds
.
Using
her
phone
,
Mia
completed
the
transaction
for
the
concert
tickets
in
seconds
.
•
The
cashier
handed
Luis
a
receipt
after
the
transaction
at
the
supermarket
checkout
.
The
cashier
handed
Luis
a
receipt
after
the
transaction
at
the
supermarket
checkout
.
Borrowed
from
Late
Latin
transactio
,
meaning
“
business
completed
,
agreement
.”
noun
in
computing
,
a
group
of
operations
processed
together
so
that
they
all
succeed
or
all
fail
as
one
unit
•
The
database
rolled
back
the
transaction
when
a
single
query
failed
.
The
database
rolled
back
the
transaction
when
a
single
query
failed
.
•
Each
bank
transfer
is
wrapped
in
a
secure
transaction
to
protect
the
data
.
Each
bank
transfer
is
wrapped
in
a
secure
transaction
to
protect
the
data
.
attraction
noun
something
interesting
or
entertaining
that
people
visit
or
experience
because
it
draws
their
attention
•
The
Eiffel
Tower
is
the
most
famous
attraction
in
Paris
.
The
Eiffel
Tower
is
the
most
famous
attraction
in
Paris
.
•
The
science
museum
added
a
new
dinosaur
attraction
for
children
.
The
science
museum
added
a
new
dinosaur
attraction
for
children
.
from
Latin
‘
attrahere
’
meaning
‘
to
draw
towards
’
noun
a
feeling
of
liking
or
being
drawn
to
someone
,
often
in
a
romantic
or
physical
way
•
There
was
an
instant
attraction
between
them
at
the
party
.
There
was
an
instant
attraction
between
them
at
the
party
.
•
She
tried
to
hide
her
growing
attraction
to
her
best
friend
.
She
tried
to
hide
her
growing
attraction
to
her
best
friend
.
from
Latin
‘
attrahere
’,
sense
of
‘
draw
toward
’
extended
to
emotions
by
the
17th
century
noun
a
physical
force
that
pulls
objects
toward
each
other
,
such
as
gravity
or
magnetism
•
Gravity
is
the
force
of
attraction
between
objects
with
mass
.
Gravity
is
the
force
of
attraction
between
objects
with
mass
.
•
Magnetic
attraction
pulls
the
iron
nails
toward
the
magnet
.
Magnetic
attraction
pulls
the
iron
nails
toward
the
magnet
.
extended
scientific
use
recorded
in
the
17th
century
with
Newton
’
s
studies
of
gravitational
attraction
fraction
noun
-
fraction
,
fractioning
,
fractions
,
fractioned
a
number
that
shows
how
many
equal
parts
of
a
whole
you
have
,
written
like
3⁄4
or
said
as
“
three
quarters
”.
•
On
the
whiteboard
,
the
teacher
wrote
the
fraction
2∕3
to
show
two
out
of
three
equal
parts
.
On
the
whiteboard
,
the
teacher
wrote
the
fraction
2∕3
to
show
two
out
of
three
equal
parts
.
•
When
Liam
doubled
his
cookie
recipe
,
he
turned
one-half
into
the
fraction
1∕2
on
his
note
.
When
Liam
doubled
his
cookie
recipe
,
he
turned
one-half
into
the
fraction
1∕2
on
his
note
.
from
Latin
fractiō
“
a
breaking
”,
from
frangere
“
to
break
”,
because
a
fraction
breaks
a
whole
into
parts
noun
-
fraction
,
fractioning
,
fractions
,
fractioned
a
very
small
part
or
amount
of
something
.
•
Only
a
tiny
fraction
of
the
city
’
s
population
takes
the
bus
to
work
.
Only
a
tiny
fraction
of
the
city
’
s
population
takes
the
bus
to
work
.
•
Jade
felt
just
a
fraction
better
after
drinking
hot
tea
,
but
she
still
stayed
in
bed
.
Jade
felt
just
a
fraction
better
after
drinking
hot
tea
,
but
she
still
stayed
in
bed
.
noun
-
fraction
,
fractioning
,
fractions
,
fractioned
in
chemistry
,
a
portion
of
a
mixture
collected
at
a
particular
boiling-point
range
during
fractional
distillation
.
•
Kerosene
is
a
middle-boiling
fraction
obtained
when
crude
oil
is
distilled
.
Kerosene
is
a
middle-boiling
fraction
obtained
when
crude
oil
is
distilled
.
•
Each
collected
fraction
was
cooled
and
stored
in
separate
glass
bottles
for
analysis
.
Each
collected
fraction
was
cooled
and
stored
in
separate
glass
bottles
for
analysis
.
noun
-
fraction
,
fractioning
,
fractions
,
fractioned
in
Christian
worship
,
the
ceremonial
breaking
of
bread
during
Communion
.
•
The
priest
performed
the
fraction
before
distributing
the
bread
to
the
congregation
.
The
priest
performed
the
fraction
before
distributing
the
bread
to
the
congregation
.
•
In
early
liturgies
,
the
fraction
symbolized
the
sharing
of
Christ
’
s
body
among
believers
.
In
early
liturgies
,
the
fraction
symbolized
the
sharing
of
Christ
’
s
body
among
believers
.
verb
-
fraction
,
fractioning
,
fractions
,
fractioned
to
divide
or
break
something
into
smaller
parts
.
•
Engineers
decided
to
fraction
the
large
data
set
into
manageable
pieces
.
Engineers
decided
to
fraction
the
large
data
set
into
manageable
pieces
.
•
To
improve
extraction
,
the
processor
fractions
the
ore
before
further
treatment
.
To
improve
extraction
,
the
processor
fractions
the
ore
before
further
treatment
.