criticism vs lecture

criticism

• The act of criticising; a critical judgment passed or expressed 

• A critical observation or detailed examination and review. 

lecture

• A berating or scolding. 

• a class that primarily consists of a (weekly or other regularly held) lecture (as in sense 1) 

• A spoken lesson or exposition, usually delivered to a group. 

• To preach, to berate, to scold. 

• To teach (somebody) by giving a speech on a given topic.