Except for the distinction between names and words, the quotation above
is vacuous. The meaning of a word cannot be its use in the language.
Part of its meaning is derived by the recipient from its use in
language, but the writer or speaker must have some meaning attached to
the words he uses beforehand, or there would be no basis for determining
their appropriate use to convey his intended meaning through the use of
language.

The definition I suggested in a previous post of this thread is better,
but no one has commented on it. I could re-iterate or expand upon it,
but if there is no interest, there's no point in beating a dead horse.