Lesson

v. instruct, teach a lesson; rebuke, scold, reprove

n. study session; exercise, assignment given to a student; something to be studied and learned; experience which brings knowledge or wisdom; scolding, rebuke; portion from a sacred text which is read during a religious service

A lesson is a structured period of time where learning is intended to occur. It involves one or more students (also called pupils or learners in some circumstances) being taught by a teacher or instructor. A lesson may be either one section of a textbook (which, apart from the printed page, can also include multimedia) or, more frequently, a short period of time during which learners are taught about a particular subject or taught how to perform a particular activity. Lessons are generally taught in a classroom but may instead take place in a situated learning environment.
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Noun
1. a unit of instruction; "he took driving lessons"
(hypernym) teaching, instruction, pedagogy
(hyponym) language lesson
(part-holonym) course, course of study, course of instruction, class
2. punishment intended as a warning to others; "they decided to make an example of him"
(synonym) example, deterrent example, object lesson
(hypernym) admonition, monition, warning, word of advice
3. the significance of a story or event; "the moral of the story is to love thy neighbor"
(synonym) moral
(hypernym) meaning, significance, signification, import
4. a task assigned for individual study; "he did the lesson for today"
(hypernym) school assignment, schoolwork
(hyponym) exercise, example
(part-holonym) education, instruction, teaching, pedagogy, educational activity

n. lesson, study session; exercise, assignment given to a student; something to be studied and learned

(v. t.)
To teach; to instruct.
  

(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 severe lecture; reproof; rebuke; warning.
  

(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.