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explain
verb
to
make
the
meaning
,
facts
,
or
details
of
something
clear
so
that
someone
understands
•
The
teacher
explained
the
new
rule
to
the
class
until
everyone
understood
.
The
teacher
explained
the
new
rule
to
the
class
until
everyone
understood
.
•
Could
you
explain
how
this
app
works
to
me
?
Could
you
explain
how
this
app
works
to
me
?
From
Latin
‘
explanare
’
meaning
‘
to
make
level
’
or
‘
make
clear
’,
from
‘
ex-
’ (
out
)
+
‘
planus
’ (
flat
,
clear
).
verb
to
be
or
give
the
reason
for
why
something
happens
or
exists
•
The
broken
fuse
explains
why
the
lights
went
out
last
night
.
The
broken
fuse
explains
why
the
lights
went
out
last
night
.
•
Thick
fog
explained
the
driver
’
s
slow
speed
on
the
highway
.
Thick
fog
explained
the
driver
’
s
slow
speed
on
the
highway
.
Same
Latin
root
as
primary
sense
;
the
idea
of
‘
making
clear
’
extended
to
‘
making
the
cause
clear
’.
lie
verb
-
lie
,
lying
,
lies
,
lay
,
lain
to
be
in
or
move
into
a
flat
,
resting
position
on
a
surface
•
The
baby
is
lying
on
the
blanket
,
smiling
up
at
his
mother
.
The
baby
is
lying
on
the
blanket
,
smiling
up
at
his
mother
.
•
After
the
hike
,
we
lay
on
the
grass
and
watched
the
clouds
.
After
the
hike
,
we
lay
on
the
grass
and
watched
the
clouds
.
Old
English
licgan
,
of
Germanic
origin
,
related
to
Dutch
liggen
and
German
liegen
.
verb
-
lie
,
lying
,
lies
,
lay
,
lain
to
be
in
a
flat
or
resting
position
on
a
surface
•
After
the
long
hike
,
Sarah
wanted
to
lie
on
the
grass
and
look
at
the
sky
.
After
the
long
hike
,
Sarah
wanted
to
lie
on
the
grass
and
look
at
the
sky
.
•
A
cat
likes
to
lie
under
the
sunny
window
all
afternoon
.
A
cat
likes
to
lie
under
the
sunny
window
all
afternoon
.
complain
verb
-
complain
,
complaining
,
complains
,
complained
to
say
that
you
are
unhappy
,
dissatisfied
,
or
annoyed
about
something
•
The
food
was
cold
,
so
the
customer
complained
to
the
waiter
.
The
food
was
cold
,
so
the
customer
complained
to
the
waiter
.
•
My
little
brother
often
complains
when
he
has
to
tidy
his
room
.
My
little
brother
often
complains
when
he
has
to
tidy
his
room
.
verb
-
complain
,
complaining
,
complains
,
complained
to
make
an
official
or
legal
statement
saying
that
someone
has
behaved
wrongly
or
that
something
is
not
acceptable
•
The
neighbors
complained
to
the
city
council
about
the
loud
construction
noise
.
The
neighbors
complained
to
the
city
council
about
the
loud
construction
noise
.
•
If
the
package
arrives
damaged
,
you
can
complain
to
the
delivery
company
.
If
the
package
arrives
damaged
,
you
can
complain
to
the
delivery
company
.
complaint
noun
an
expression
,
spoken
or
written
,
that
shows
you
are
not
satisfied
with
something
or
think
something
is
wrong
•
The
waiter
apologized
after
hearing
the
customer
’
s
complaint
about
the
undercooked
steak
.
The
waiter
apologized
after
hearing
the
customer
’
s
complaint
about
the
undercooked
steak
.
•
Lucy
wrote
an
email
of
complaint
to
the
airline
after
her
suitcase
was
damaged
.
Lucy
wrote
an
email
of
complaint
to
the
airline
after
her
suitcase
was
damaged
.
From
Old
French
complainte
,
from
Latin
plangere
“
to
lament
”.
noun
a
minor
illness
or
medical
condition
,
especially
when
not
named
specifically
•
The
doctor
asked
if
Emma
had
any
chest
complaints
such
as
pain
or
tightness
.
The
doctor
asked
if
Emma
had
any
chest
complaints
such
as
pain
or
tightness
.
•
He
stayed
home
from
school
with
a
stomach
complaint
and
a
mild
fever
.
He
stayed
home
from
school
with
a
stomach
complaint
and
a
mild
fever
.
Use
for
bodily
ailments
dates
back
to
the
17th
century
,
when
patients
would
‘
complain
of
’
pains
.
noun
a
formal
legal
document
that
starts
a
lawsuit
and
states
the
claims
against
the
defendant
•
The
attorney
filed
a
complaint
in
federal
court
alleging
copyright
infringement
.
The
attorney
filed
a
complaint
in
federal
court
alleging
copyright
infringement
.
•
After
reviewing
the
complaint
,
the
judge
scheduled
a
preliminary
hearing
.
After
reviewing
the
complaint
,
the
judge
scheduled
a
preliminary
hearing
.
Sense
developed
in
English
law
by
the
late
14th
century
,
extending
the
idea
of
stating
a
grievance
to
a
formal
written
claim
.
plain
adjective
-
plain
,
plainer
,
plainest
having
no
decoration
,
pattern
,
or
extra
detail
;
simple
in
appearance
•
She
wore
a
plain
white
T-shirt
to
the
picnic
.
She
wore
a
plain
white
T-shirt
to
the
picnic
.
•
The
living-room
walls
were
left
plain
so
they
could
add
artwork
later
.
The
living-room
walls
were
left
plain
so
they
could
add
artwork
later
.
From
Old
French
"
plain
",
from
Latin
"
planus
"
meaning
“
flat
,
level
,
clear
”.
adjective
-
plain
,
plainer
,
plainest
without
added
flavor
or
extras
;
basic
or
unseasoned
•
He
ordered
a
bowl
of
plain
rice
.
He
ordered
a
bowl
of
plain
rice
.
•
Do
you
want
your
bagel
plain
or
with
cream
cheese
?
Do
you
want
your
bagel
plain
or
with
cream
cheese
?
Applied
to
food
since
the
18th
century
,
meaning
“
not
mixed
or
seasoned
”.
noun
a
large
,
flat
area
of
land
with
few
trees
•
Wild
horses
galloped
across
the
plain
at
sunset
.
Wild
horses
galloped
across
the
plain
at
sunset
.
•
The
settlers
built
their
cabins
on
the
open
plain
.
The
settlers
built
their
cabins
on
the
open
plain
.
From
Latin
"
planus
"
meaning
“
flat
”.
Geographic
sense
recorded
since
the
14th
century
.
adjective
-
plain
,
plainer
,
plainest
easy
to
understand
;
stated
clearly
•
The
guidebook
is
written
in
plain
language
.
The
guidebook
is
written
in
plain
language
.
•
Let
me
make
it
plain
:
the
museum
closes
at
five
.
Let
me
make
it
plain
:
the
museum
closes
at
five
.
Sense
extended
from
“
flat
,
even
”
to
“
straightforward
,
clear
”
in
Middle
English
.
adjective
-
plain
,
plainer
,
plainest
(
of
a
person
’
s
appearance
)
not
beautiful
or
striking
•
She
felt
plain
beside
her
glamorous
sister
.
She
felt
plain
beside
her
glamorous
sister
.
•
The
hero
believed
he
was
too
plain
to
impress
the
princess
.
The
hero
believed
he
was
too
plain
to
impress
the
princess
.
Used
to
describe
appearance
since
the
17th
century
,
from
idea
of
“
simple
,
without
embellishment
”.
adverb
completely
or
obviously
(
informal
)
•
The
answer
is
plain
wrong
.
The
answer
is
plain
wrong
.
•
I
plain
forgot
your
birthday
—
I'm
so
sorry
!
I
plain
forgot
your
birthday
—
I'm
so
sorry
!
Adverbial
use
developed
in
the
19th
century
from
the
adjective
meaning
“
clear
or
obvious
”.