Instance and Lesson

instance

An occurrence of something.
- usage: "it was a case of bad judgment"; "another instance occurred yesterday"; "but there is always the famous example of the Smiths"
- synonyms: case, example
An item of information that is typical of a class or group.
- usage: "this patient provides a typical example of the syndrome"; "there is an example on page 10"
- synonyms: example, illustration, representative

(n.) That which is instant or urgent; motive.
(n.) That which offers itself or is offered as an illustrative case; something cited in proof or exemplification; a case occurring; an example.
(n.) Occasion; order of occurrence.
(n.) The act or quality of being instant or pressing; urgency; solicitation; application; suggestion; motion.
(v.t.) To mention as a case or example; to refer to; to cite; as, to instance a fact.
(n.) A token; a sign; a symptom or indication.
(v.i.) To give an example.

Webster's Revised Unabridged Dictionary

lesson

A unit of instruction.
- usage: "he took driving lessons"
Punishment intended as a warning to others.
- usage: "they decided to make an example of him"
- synonyms: example, deterrent example, object lesson
The significance of a story or event.
- usage: "the moral of the story is to love thy neighbor"
- synonyms: moral
A task assigned for individual study.
- usage: "he did the lesson for today"

(n.) That which is learned or taught by an express effort; instruction derived from precept, experience, observation or deduction; a precept; a doctrine; as, to take or give a lesson in drawing.
(n.) Anything read or recited to a teacher by a pupil or learner; something, as a portion of a book, assigned to a pupil to be studied or learned at one time.
(n.) A portion of Scripture read in divine service for instruction; as, here endeth the first lesson.
(n.) An exercise; a composition serving an educational purpose; a study.
(n.) A severe lecture; reproof; rebuke; warning.
(v.t.) To teach; to instruct.

Webster's Revised Unabridged Dictionary