To be wanting] to fall short; to be or become
deficient in any measure or degree up to total absence; to cease to
be furnished in the usual or expected manner, or to be altogether cut
off from supply; to be lacking; as, streams fail; crops
fail.
To be affected with want; to come short;
to lack; to be deficient or unprovided; -- used with
of.
To fall away; to become diminished; to
decline; to decay; to sink.
To deteriorate in respect to vigor,
activity, resources, etc.; to become weaker; as, a sick man
fails.
To perish; to die; -- used of a
person.
To be found wanting with respect to an
action or a duty to be performed, a result to be secured, etc.; to
miss; not to fulfill expectation.
To come short of a result or object aimed
at or desired ; to be baffled or frusrated.
To err in judgment; to be
mistaken.
To become unable to meet one's
engagements; especially, to be unable to pay one's debts or discharge
one's business obligation; to become bankrupt or insolvent.
In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 
