Definition of lessons:
(n) :
A section of learning or teaching into which a wider learning content is divided.
(n) :
Something learned or to be learned.
(n) :
A learning task assigned to a student; homework.
(v) :
To give a lesson to; to teach.
(n) :
A severe lecture; reproof; rebuke; warning.
(n) :
A section of the Bible or other religious text read as part of a divine service.