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effective
adjective
producing
the
result
that
you
want
•
Taking
notes
during
class
is
an
effective
way
to
remember
the
material
.
Taking
notes
during
class
is
an
effective
way
to
remember
the
material
.
•
The
mosquito
spray
was
so
effective
that
no
one
got
bitten
.
The
mosquito
spray
was
so
effective
that
no
one
got
bitten
.
adjective
starting
to
be
used
and
having
legal
or
practical
force
•
The
new
parking
rules
will
be
effective
next
Monday
.
The
new
parking
rules
will
be
effective
next
Monday
.
•
The
price
changes
become
effective
at
the
start
of
the
new
year
.
The
price
changes
become
effective
at
the
start
of
the
new
year
.
adjective
producing
a
strong
or
pleasing
impression
•
The
play
used
simple
lights
,
but
the
results
were
very
effective
.
The
play
used
simple
lights
,
but
the
results
were
very
effective
.
•
His
effective
speech
inspired
the
whole
audience
.
His
effective
speech
inspired
the
whole
audience
.
effectively
adverb
in
a
successful
or
efficient
way
that
produces
the
intended
result
•
The
new
water
filter
effectively
removed
all
the
impurities
from
the
river
water
.
The
new
water
filter
effectively
removed
all
the
impurities
from
the
river
water
.
•
By
organizing
her
notes
,
Maria
studied
effectively
for
the
exam
.
By
organizing
her
notes
,
Maria
studied
effectively
for
the
exam
.
From
adjective
effective
+
adverbial
suffix
-ly
,
first
recorded
in
the
15th
century
.
adverb
used
to
say
that
something
is
true
or
happens
in
practice
even
though
it
is
not
officially
recognized
or
perfectly
exact
•
After
the
manager
quit
,
Jenna
was
effectively
in
charge
of
the
whole
store
.
After
the
manager
quit
,
Jenna
was
effectively
in
charge
of
the
whole
store
.
•
The
village
was
effectively
cut
off
when
the
only
bridge
collapsed
.
The
village
was
effectively
cut
off
when
the
only
bridge
collapsed
.
Same
origin
as
other
sense
:
from
effective
+
-ly
,
but
this
pragmatic
meaning
developed
in
the
18th
century
to
express
the
idea
of
‘
in
effect
’.
