Personal language is the private meaning-world you carry inside words. Two people can use the same word and mean slightly different things because each person brings a different history to it. Words are never just dictionary entries. They carry context.
A word like “freedom,” “God,” “truth,” “family,” “science,” or “justice” does not land the same way in every mind. It arrives with memory, culture, emotion, education, and personal experience already attached. That is why disagreements are often not just about facts. They are about meanings.
In TST, personal language is one of the three major abstractions of worldview, alongside personal religion and personal philosophy. Your language shapes the categories you use to divide reality. It shapes what you can name, what you can compare, and what you can question.
This is why definitions matter so much. When you clarify language, you clarify thought. When you understand another person’s language from the inside, dialogue becomes possible. Without that, people can talk past each other while using the same words.