Vocabulary is understood to be the more or less complex set of terms that make up a language or language. The vocabulary varies for each language and has as a significant characteristic that of transforming over time according to the addition or abandonment of some words. On the other hand, while vocabulary is a social invention whose main objective is communication between individuals, individual vocabularies can also be generated that have to do with the generation of more or less personalized terms that only the subject in question can fully understand. .
Like most of the communicative creations of the human being, the vocabulary could be described as a dynamic structure that does not remain static but varies with time and with the passage of generations, responsible for abandoning or adding words in the daily use of language . The vocabulary of one language may be similar to that of another language, but it will never be the same and while some languages are really complex in terms of terms and their meanings, others are considered much simpler and more accessible.
In order for a person to understand the vocabulary of a language, they need to be able to understand and use it. At the same time, it can also happen that some terms are understandable on a mental level but are not easily definable in words since their use has to do more than anything with the common use of the term. However, recognizing the word only by phonetics or directly not knowing its meaning or not knowing the word implies that the term is not part of a person's vocabulary.
Normally, when you think of the term 'vocabulary', you think of the set of words used orally. However, this can be different from the written vocabulary since the terms to be used in each situation and space will not be the same, the language being diverse for different types of situations.
