The expansion of vocabulary is a crucial aspect of language learning, and there are various synonyms to describe this process. Vocabulary acquisition refers to the process of learning and internalizing new words, whereas lexical development involves the growth and refinement of the language's lexicon. Word enrichment is another synonym and describes the process of enhancing or broadening one's vocabulary. Vocabulary extension is a term that most appropriately describes bettering one's vocabulary with new and more advanced words and phrases. With the development of vocabulary, it is easier to articulate yourself and express your thoughts and ideas more efficiently, both in written and spoken forms.