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breakthrough
noun
a
sudden
important
discovery
,
invention
,
or
development
that
removes
a
barrier
and
allows
significant
progress
•
The
scientist's
unexpected
breakthrough
led
to
a
life-saving
drug
.
The
scientist's
unexpected
breakthrough
led
to
a
life-saving
drug
.
•
A
recent
breakthrough
in
solar
panel
design
has
made
renewable
energy
cheaper
than
ever
.
A
recent
breakthrough
in
solar
panel
design
has
made
renewable
energy
cheaper
than
ever
.
noun
a
sudden
and
significant
success
in
overcoming
a
difficult
problem
or
in
reaching
agreement
after
a
period
of
little
progress
•
Negotiators
finally
made
a
breakthrough
in
the
peace
talks
after
months
of
deadlock
.
Negotiators
finally
made
a
breakthrough
in
the
peace
talks
after
months
of
deadlock
.
•
Therapy
helped
her
achieve
a
personal
breakthrough
in
dealing
with
anxiety
.
Therapy
helped
her
achieve
a
personal
breakthrough
in
dealing
with
anxiety
.
noun
a
military
attack
in
which
attacking
forces
successfully
push
through
and
pass
beyond
the
enemy
’
s
defensive
line
•
The
dawn
offensive
achieved
a
breakthrough
that
split
the
enemy
’
s
front
in
two
.
The
dawn
offensive
achieved
a
breakthrough
that
split
the
enemy
’
s
front
in
two
.
•
Once
the
breakthrough
occurred
,
reinforcements
poured
through
the
gap
.
Once
the
breakthrough
occurred
,
reinforcements
poured
through
the
gap
.