The letters in Myers Briggs personality types represent a combination of psychological preferences that describe how individuals perceive the world and make decisions. These letters — often displayed as four-letter codes like INTJ, ENFP, or ISTP — form the foundation of the Myers-Briggs Type Indicator (MBTI), one of the most popular personality frameworks in the world.

What Are the Letters in Myers Briggs?

Each of the four letters in Myers Briggs corresponds to a specific aspect of personality. Together, these letters form 16 distinct personality types that reflect how people interact with others, process information, and approach life’s challenges.

The four Myers Briggs dimensions are:

  1. E or I: Extraversion vs. Introversion
  2. S or N: Sensing vs. Intuition
  3. T or F: Thinking vs. Feeling
  4. J or P: Judging vs. Perceiving

1. Extraversion (E) vs. Introversion (I)

The first of the letters in Myers Briggs describes how you direct your energy — outward or inward.

  • Extraversion (E): People who prefer extraversion are energized by interaction and activity. They enjoy socializing, sharing ideas, and engaging with their surroundings.
  • Introversion (I): Introverts are energized by reflection and solitude. They focus on their inner world of thoughts, preferring smaller groups or one-on-one connections.

Example: An ENFP draws energy from meeting people, while an INFJ recharges through introspection.

2. Sensing (S) vs. Intuition (N)

The second letter in the Myers Briggs system explains how you take in information and perceive the world around you.

  • Sensing (S): Focuses on concrete facts, details, and practical realities. Sensors prefer hands-on experience and trust what can be observed directly.
  • Intuition (N): Looks at the big picture and underlying meanings. Intuitive types enjoy patterns, possibilities, and abstract concepts.

Example: An ISTJ relies on proven facts and logic, while an ENFP is drawn to imaginative ideas and possibilities.

3. Thinking (T) vs. Feeling (F)

The third letter in the Myers Briggs personality type shows how you make decisions — logically or emotionally.

  • Thinking (T): Thinkers value fairness, logic, and objectivity. They tend to make decisions based on facts and principles rather than emotions.
  • Feeling (F): Feelers prioritize empathy, harmony, and personal values. They make decisions based on how choices affect people and relationships.

Example: An ENTJ approaches challenges with analysis and structure, while an ESFJ considers the emotional impact on others.

4. Judging (J) vs. Perceiving (P)

The final of the letters in Myers Briggs reflects how you approach your daily life — with structure or spontaneity.

  • Judging (J): Prefers planning, order, and organization. Judging types like to make decisions early and stick to a plan.
  • Perceiving (P): Prefers flexibility and adaptability. Perceiving types like to keep options open and thrive in spontaneous situations.

Example: An INFJ plans ahead and values closure, while an INFP stays open to new opportunities and changes course easily.

The 16 Myers Briggs Personality Types

When combined, the four letters in Myers Briggs create one of sixteen unique personality types. Each represents a distinct pattern of behavior and preference. Here’s a quick overview:

Type Nickname Core Traits
ISTJThe InspectorResponsible, practical, and reliable
ISFJThe ProtectorWarm, dependable, and caring
INFJThe CounselorInsightful, empathetic, and idealistic
INTJThe StrategistAnalytical, visionary, and independent
ISTPThe CrafterLogical, adaptable, and hands-on
ISFPThe ArtistGentle, creative, and free-spirited
INFPThe MediatorIdealistic, imaginative, and compassionate
INTPThe ThinkerCurious, intellectual, and abstract
ESTPThe DynamoEnergetic, action-oriented, and spontaneous
ESFPThe PerformerEnthusiastic, social, and expressive
ENFPThe CampaignerCharismatic, curious, and visionary
ENTPThe DebaterInventive, clever, and analytical
ESTJThe ExecutiveOrganized, assertive, and disciplined
ESFJThe CaregiverLoyal, sociable, and service-oriented
ENFJThe TeacherSupportive, inspiring, and diplomatic
ENTJThe CommanderStrategic, confident, and results-driven

How to Interpret the Letters in Myers Briggs

Each four-letter combination reveals a unique personality pattern. For example:

  • INTP: Introverted, Intuitive, Thinking, Perceiving — curious, independent thinkers who value logic and innovation.
  • ENFJ: Extraverted, Intuitive, Feeling, Judging — empathetic leaders who guide others toward shared goals.
  • ISFP: Introverted, Sensing, Feeling, Perceiving — artistic and gentle souls who live authentically in the moment.

Understanding these letters in Myers Briggs helps you decode how you naturally operate — from communication style to motivation and problem-solving approach.

Why the Letters in Myers Briggs Matter

The letters in Myers Briggs do more than describe personality; they provide insight into how people relate to the world and to each other. Learning your type can help you:

  • Recognize your strengths and potential blind spots
  • Improve communication in relationships and at work
  • Find a career that aligns with your natural preferences
  • Understand others’ viewpoints and motivations

Whether you’re exploring personal growth, enhancing teamwork, or deepening self-understanding, knowing the meaning behind the letters in Myers Briggs is a powerful step toward greater self-awareness.

Final Thoughts

The letters in Myers Briggs capture the essence of how people think, feel, and interact with the world. While no personality system defines you completely, this framework offers a practical map of your psychological preferences. By learning your type and understanding what each letter means, you can make more intentional choices — in work, relationships, and life.

Ultimately, these four simple letters form a language of personality that continues to inspire self-discovery across the globe.