What does each letter mean in the keirsey personality test?

The Keirsey Personality Test categorizes personalities into four main temperaments, each represented by a combination of four letters. These letters are based on preferences in four dichotomies: E (Extraversion) or I (Introversion), S (Sensing) or N (Intuition), T (Thinking) or F (Feeling), and J (Judging) or P (Perceiving). For example, an ESTJ personality type would be characterized as Extraverted, Sensing, Thinking, and Judging, indicating a practical and organized approach to life. Each combination reflects distinct traits and tendencies in how individuals perceive the world and make decisions.