Noun
A
billet
of
wood
;
a
piece
of
timber
,
a
similar
solid
object
or
constructed
unit
used
as
a
prop
.
Verb
To
check
the
motion
of
,
as
a
carriage
on
a
steep
slope
,
by
putting
a
sprag
between
the
spokes
of
the
wheel
.