"PRINCIPAL" and "PRINCIPLE"

"Principal" refers to a person in a position of authority or the primary part of something. "Principle" means a fundamental rule or belief. Ex.: The school principal addressed the students. The principal reason for our success is teamwork. Honesty is an important principle to uphold.

"ELICIT" and "ILLICIT"

"Elicit" means to draw out or provoke a response. "Illicit" means illegal or forbidden. Ex.: The teacher's question elicited a lively discussion. The police uncovered an illicit gambling operation.