seek void square set grapple lignite collapse structural
1
.
Often
referred
to
as
brown
coal
,
it
is
a
soft
,
brown
,
combustible
,
sedimentary
rock
formed
from
naturally
compressed
peat
and
known
as
.
2
.
To
try
hard
to
understand
a
difficult
idea
or
to
solve
a
difficult
problem
is
to
with
.
3
.
A
dramatic
shift
in
the
way
an
industry
or
market
functions
,
usually
brought
on
by
major
economic
developments
is
known
as
change
.
4
.
An
idiomatic
expression
that
means
to
do
something
that
is
very
difficult
or
impossible
is
to
the
circle
.
5
.
A
breakdown
of
a
national
,
regional
,
or
territorial
economy
that
typically
follows
a
time
of
crisis
is
known
as
economic
.
6
.
To
fill
the
means
to
provide
something
that
is
missing
or
needed
.
7
.
To
up
new
industry
means
to
establish
new
industry
.
8
.
To
the
solution
to
a
problem
means
to
try
to
obtain
the
solution
.