Definology: The Power of Definitions and Implications for Action

By Dr Charles Margerison, Psychologist, Amazing People Worldwide

The Meaning of Definitions

The verb to define originates from the Latin definire, meaning to limit or set boundaries. When something is defined, the parameters for understanding and applying that concept are established. Definitions shape how individuals perceive the world and guide their actions within it. They are central to communication and decision-making, influencing everything from thought to behaviour.

Definitions vary across domains, including science, medicine, politics, law and personal identity. In today’s media-saturated world, where politicians, advertisers and individuals often use language to influence or manipulate, it is essential to examine how definitions are formed and employed. Words are used not merely to describe, but to condition thinking, justify actions and gain advantage. This makes the study of definitions—Definology—a necessary discipline for students and professionals alike.

What is Definology?

Definology is the study of how words and concepts are defined, and how those definitions influence thought, behaviour and social structures. It is particularly relevant in the fields of English and Communication, where students must analyse the construction and impact of language beyond surface meaning.

Definology encourages critical analysis by outlining the purpose of a definition, the evidence that supports it and the context in which it is used. This process promotes clarity, challenges assumptions and fosters ethical communication across education, business, science and governance.

Definitions serve various roles depending on their context:

  • Dictionary definitions offer standardised meanings, typically endorsed by academic or linguistic authorities.
  • Normative definitions evolve alongside societal values and cultural shifts.
  • Legal definitions hold formal authority and underpin decisions in judicial and legislative contexts.
  • Scientific definitions are based on evidence, experimentation and peer-reviewed validation.
  • Subjective definitions, such as those related to emotions or the arts, depend on personal or interpretative understanding.
  • Political definitions are often created or altered to influence public opinion and shape policy. In this domain, language becomes a tool of control and persuasion.

As Lewis Carroll famously wrote in Through the Looking-Glass (1871), the character Humpty Dumpty declares:

“When I use a word, it means just what I choose it to mean—neither more nor less.”

This statement illustrates the deliberate manipulation of language in political contexts, where meanings are shaped to serve ideological objectives.

History offers numerous examples of how definitions have been distorted to justify harmful policies. During the Nazi regime in World War II, language was weaponised to dehumanise Jews and other targeted groups. These definitions were codified into propaganda, law and education, shaping societal beliefs and enabling atrocities. Similarly, under Apartheid in South Africa, legal definitions of race were used to institutionalise discrimination and exclude the majority population from rights and representation.

In both cases, language was deliberately constructed to legitimise oppression. The definitions used were not grounded in truth or justice but served the interests of those in power. Definology helps students and professionals identify such misuse by questioning:

  • What is the purpose of this definition?
  • What evidence supports it?
  • In what context is it applied?
  • Who benefits from the definition, and what rights does it grant or deny?

By addressing these questions, Definology cultivates an informed and analytical approach to language—one that is urgently needed in today’s climate of misinformation, political spin and commercial persuasion.

The Implications of Definitions for Action

Definitions are not neutral; they shape how people interpret the world and act within it. Words such as health, freedom and justice influence perceptions of human rights, responsibilities and social structures.

Consider the evolving definition of health. It was once limited to the absence of disease. Modern definitions now incorporate mental wellbeing, physical condition, lifestyle and social connectedness. This broader understanding has reshaped healthcare to include psychological services, preventative strategies and holistic approaches.

In political systems, definitions of freedom, equality or security vary depending on ideology. A democracy may define freedom as personal autonomy, while an authoritarian regime may interpret it as collective order at the cost of individual rights. These differing definitions result in contrasting policies, legal frameworks and public expectations.

At a personal level, individuals define success, happiness or fulfilment in diverse ways. Some may focus on financial achievement, while others may emphasise personal growth, relationships or service to others. The definitions people adopt influence their goals, decisions and sense of satisfaction.

The Danger of Assumptions and Majority Opinion

Although definitions are essential for communication, they are not always accurate or beneficial. Definitions based on false assumptions, cultural bias or unexamined majority opinion can distort understanding and lead to damaging consequences.

The geocentric model is a historical example. For centuries, the Earth was defined as the centre of the universe, not because of evidence, but because the definition aligned with religious and philosophical beliefs. This persisted until Copernicus, Galileo and Kepler redefined our cosmic perspective through empirical observation.

Definitions of justice have likewise been manipulated. Legal systems once defined slavery as a legitimate institution and racial segregation as lawful. These were not merely semantic issues but definitions that justified systemic harm. Only through challenges by civil rights movements and social reformers did these definitions evolve.

In medicine, outdated definitions of mental illness once attributed conditions to supernatural causes or moral failings. Despite advances in psychology and neuroscience, some of these unhelpful definitions still linger in public attitudes and even in policy.

The Need for Evidence-Based Definitions

To prevent harmful consequences, definitions must be grounded in evidence, critical reasoning and social relevance. Science exemplifies this principle. Definitions are refined in light of new discoveries. For example, the understanding of gravity has developed significantly, from Newtonian mechanics to Einstein’s theory of general relativity.

In medicine, the definition of health is continually updated to reflect advancements in genetics, public health and mental wellbeing. In politics, definitions of citizenship, rights and equity evolve in response to social movements, demographic change and global challenges.

Evidence-based definitions ensure that actions taken in law, policy, education and healthcare are informed, inclusive and just. Definology promotes the ongoing refinement of definitions to reflect contemporary understanding and ethical progress.

Definology Across Professions

All professions rely on precise definitions to guide their work. In law, definitions determine responsibility and legality. In medicine, they affect diagnosis and treatment. In education, they influence curriculum and learning outcomes. In business, they affect strategy, performance and decision-making.

Psychology, in particular, examines how definitions shape human thinking and behaviour. The definitions people create influence their identity, values and actions. By understanding how individuals and groups define success, failure, love or purpose, psychologists help people navigate complex emotional and social challenges.

Definology, as a cross-disciplinary tool, encourages professionals to examine definitions critically rather than accept them at face value. It promotes clarity and shared understanding, especially in business and organisational settings where assumptions about key terms can lead to miscommunication or conflict. Agreement on definitions in meetings or contracts is essential for collaboration and accountability.

Conclusion: Why Definology Matters

Definitions are more than words. They structure knowledge, drive policy and influence behaviour. Studying Definology empowers individuals to question the meanings they are given, refine their understanding and engage with the world more thoughtfully and effectively.

In a world dominated by persuasive language, political messaging and digital media, the ability to define—and to challenge definitions—is a form of intellectual independence. Definology encourages rigorous thinking, ethical communication and informed decision-making.

Whether in education, business, science, politics or personal life, clarity in definition is the foundation of meaningful action.

Bibliography

  • Anstey, P.R., & Bronstein, D. (Eds.) (2025), Definition and Essence from Aristotle to Kant, London: Routledge.
  • Charles, D. (2000), Aristotle on Meaning and Essence, Oxford: Clarendon Press.
  • Cohen, L.J. (1962), The Diversity of Meaning, London: Routledge.
  • Fetzer, J.H., Shatz, D., & Schlesinger, G. (Eds.) (1991), Definitions and Definability: Philosophical Perspectives, Dordrecht: Springer.
  • Kuhn, T.S. (1962), The Structure of Scientific Revolutions, Chicago: University of Chicago Press.
  • Margerison, C.J. (2015), If Only I Had Said, Brisbane: Mercury Publications.