a long search for something that is difficult to find, or an attempt to achieve something difficult
The treasure hunter went on a quest to find an ancient gold necklace.
The knight embarked on a perilous quest to rescue the captured princess.
Her lifelong quest for knowledge led her to explore distant lands and cultures.
The protagonist faced numerous challenges during his quest for the legendary treasure.
The scientific community joined forces in a quest to find a cure for the rare disease.
