To preach, to berate, to scold.
To teach (somebody) by giving a speech on a given topic.
a class that primarily consists of a (weekly or other regularly held) lecture (as in sense 1)
A berating or scolding.
A spoken lesson or exposition, usually delivered to a group.
to criticise, rebuke or reprimand (someone), usually in a gentle and kind tone.
To prove again.
to deny or reject (a feeling, behaviour, action etc.).
to express disapproval.