Noun
A
stick
or
rod
used
to
measure
the
depth
of
a
liquid
.
Often
used
to
check
the
level
at
which
a
liquid
in
an
opaque
or
inaccessible
tank
or
reservoir
stands
;
gauge
.
Verb
To
check
(
a
person
)
for
their
understanding
of
something
,
as
of
a
lesson
,
or
attitude
toward
something
.