Adjective
Happening
by
turns
;
one
following
the
other
in
succession
of
time
or
place
;
first
one
and
then
the
other
(
repeatedly
).
Noun
That
which
alternates
with
something
else
;
vicissitude
.
Verb
To
perform
by
turns
,
or
in
succession
;
to
cause
to
succeed
by
turns
;
to
interchange
regularly
.