The article delves into the critical role of terminology in professional thinking and scientific communication. It highlights how the use and application of terms can lead to misunderstandings among scientists, particularly due to issues like polysemy (multiple meanings), vague conceptual boundaries, and the fluidity of language in scientific discourse. These "terminological situations" create barriers to effective communication, emphasizing the necessity for clarity and precision in the terminology used within any scientific field, including linguistics.One of the main points raised is that the substantive relevance of a term hinges on its denotative relationship to the reality it represents. If the meaning of a term is unclear or ambiguous, it undermines the ability to communicate effectively. The article argues that understanding the specific phenomena that a term designates is essential for proper scientific discourse.Additionally, the text discusses the two-fold nature of terms: they not only denote a particular reality but also help shape scientific concepts about that reality. The connection between a term and its associated scientific concept—the significative connection—is what gives the term its conceptual relevance.In summary, the article advocates for a thorough examination and clarification of key terms in the pursuit of effective scientific communication, stressing the importance of understanding both the denotative and significative aspects of terms.