From WordNet (r) 3.0 (2006):
lag
n 1: the act of slowing down or falling behind [syn: slowdown,
lag, retardation]
2: the time between one event, process, or period and another;
"meanwhile the socialists are running the government" [syn:
interim, meantime, meanwhile, lag]
3: one of several thin slats of wood forming the sides of a
barrel or bucket [syn: stave, lag]
v 1: hang (back) or fall (behind) in movement, progress,
development, etc. [syn: lag, dawdle, fall back, fall
behind]
2: lock up or confine, in or as in a jail; "The suspects were
imprisoned without trial"; "the murderer was incarcerated for
the rest of his life" [syn: imprison, incarcerate, lag,
immure, put behind bars, jail, jug, gaol, put
away, remand]
3: throw or pitch at a mark, as with coins
4: cover with lagging to prevent heat loss; "lag pipes"