The act of differing; the state or measure of being different or
unlike; distinction; dissimilarity; unlikeness; variation; as, a
difference of quality in paper; a difference in degrees
of heat, or of light; what is the difference between the
innocent and the guilty?
Disagreement in opinion; dissension;
controversy; quarrel; hence, cause of dissension; matter in
controversy.
That by which one thing differs from
another; that which distinguishes or causes to differ; mark of
distinction; characteristic quality; specific attribute.
Choice; preference.
An addition to a coat of
arms to distinguish the bearings of two persons, which would
otherwise be the same. See Augmentation, and Marks of
cadency, under Cadency.
The quality or attribute
which is added to those of the genus to constitute a species; a
differentia.
The quantity by which one
quantity differs from another, or the remainder left after
subtracting the one from the other.
In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 
