The Big Five are so-called because they are the five most dangerous animals to hunt. They are: elephant, lion, buffalo, rhino and leopard.
A nickname often used to refer to Warren Norman's five dimensions of personality: extroversion, neuroticism (or emotional instability), agreeableness, conscientiousness, and openness to experience. These five traits often emerge from factor analyses of trait terms.
The Big Five is the name given to a group of former sugarcane corporations that wielded considerable political power in the Territory of Hawai‘i and leaned heavily towards the Hawai‘i Republican Party. The Big Five was comprised of Castle & Cooke, Alexander & Baldwin, C. Brewer & Co., Amfac and Theo H.