instance

(noun) an occurrence of something. Synonyms: case, example. Examples: "It was a case of bad judgment." "Another instance occurred yesterday." "But there is always the famous example of the smiths."

(noun) an item of information that is typical of a class or group. Synonyms: example, illustration, representative. Examples: "This patient provides a typical example of the syndrome." "There is an example on page 10."

(verb) clarify by giving an example of. Synonyms: exemplify, illustrate.