example

n. 1 thing characteristic of its kind or illustrating a general rule. 2 person, thing, or piece of conduct, in terms of its fitness to be imitated. 3 circumstance or treatment seen as a warning to others. 4 problem or exercise designed to illustrate a rule.  for example by way of illustration. [latin exemplum: related to *exempt]

n. One or a portion taken to show the character or quality of the whole; a sample; a specimen.