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thirty
adjective
-
thirty
,
thirties
being
the
number
that
is
three
times
ten
•
There
are
thirty
students
in
our
class
.
There
are
thirty
students
in
our
class
.
•
We
planted
thirty
trees
along
the
road
.
We
planted
thirty
trees
along
the
road
.
From
Old
English
“
þrītig
”,
a
compound
of
“
þrīe
” (
three
)
+
the
suffix
“
-tig
” (
group
of
ten
),
dating
back
to
Proto-Germanic
roots
.
noun
-
thirty
,
thirties
the
number
30
itself
,
treated
as
an
amount
or
score
•
Add
five
and
you
’
ll
reach
an
even
thirty
.
Add
five
and
you
’
ll
reach
an
even
thirty
.
•
The
temperature
hit
a
scorching
thirty
degrees
Celsius
today
.
The
temperature
hit
a
scorching
thirty
degrees
Celsius
today
.
Same
origin
as
the
adjective
form
:
from
Old
English
“
þrītig
,”
meaning
three
tens
.
