1.the act of slowing down or falling behind
2.the time between one event, process, or period and another
3.one of several thin slats of wood forming the sides of a barrel or bucket
1.hang (back) or fall (behind) in movement, progress, development, etc.
2.lock up or confine, in or as in a jail;
The suspects were imprisoned without trial
3.throw or pitch at a mark, as with coins
4.cover with lagging to prevent heat loss;
lag pipes