The term of vocabulary can be defined as lexical, which is a seven letter word. Lexical refers to the words and phrases used in a language, including their meanings and origins. It is the study of the structure of words and how they are used in a language. Lexical items are the basic units of a language, such as nouns, verbs, adjectives, adverbs, and prepositions. Lexical items can also refer to idioms, slang, and jargon. Lexical items are important for understanding the meaning of a text or conversation.