Noun
A
(
usually
)
metal
fastener
consisting
of
a
cylindrical
body
that
is
threaded
,
with
a
larger
head
on
one
end
.
It
can
be
inserted
into
an
unthreaded
hole
up
to
the
head
,
with
a
nut
then
threaded
on
the
other
end
;
a
heavy
machine screw
.
Verb
To
connect
or
assemble
pieces
using
a
bolt
.
Adverb
Suddenly
;
straight
;
unbendingly
.