He and she are in the midst of passionate love.

He is passionately in love with her.

He is an ardent music lover.

I'm always moved by his passionate expressions of love.

After taking the antipyretic, my fever went down.

She gave medicine to bring down her child's fever.

He has a fever because he caught a cold.

He took a day off from school because he had a fever.

My younger sister is missing school because of scarlet fever.

He donated a library to the university through his bequest.