"BREATHE" and "BREATH"

"Breathe" means to inhale and exhale. "Breath" refers to a single inhalation or exhalation. Ex.: Remember to breathe deeply and relax. She took a deep breath before diving.

"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.