Noun
The
confinement
of
people
in
their
own
rooms
(
e
.
g
.,
in
a
school
)
or
cells
(
in
a
prison
),
or
to
their
own
homes
or
areas
(
e
.
g
.,
in
the
case
of
a
city-
or
nation-wide
issue
)
as
a
security
measure
after
or
amid
a
disturbance
or
as
a
non-pharmaceutical
intervention
in
a
pandemic
.