"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.

"COMPLEMENT" and "COMPLIMENT"

"Complement" means to complete or enhance. "Compliment" means to praise or express admiration. Ex.: The dessert complements the meal beautifully. He received a heartfelt compliment on his performance.