"PEEK," "PIQUE," and "PEAK"

"Peek" means a quick look. "Pique" means to provoke or arouse. "Peak" refers to the highest point. Ex.: Let's take a peek at the menu. Her curiosity was piqued. We reached the mountain peak at noon.

"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.