Acquisition of vocabulary is 

Vocabulary acquisition refers to the process of learning and internalizing words, their meanings, and their appropriate use in communication.

Key Points

• It’s a critical component of language learning and literacy development because a rich vocabulary allows individuals to express themselves clearly, understand others, and engage more fully in reading and writing.
• Learning words in totality means understanding each word comprehensively.
• It includes knowing the word's definition, pronunciation, spelling, usage, and nuances.
• Effective vocabulary acquisition involves integrating new words into your existing knowledge base, allowing you to use them accurately in different contexts.
• Mastery of vocabulary is not just about knowing words but being able to use them effectively in communication.
• This means selecting the right words for the right context, understanding their connotations, and applying them appropriately in both speaking and writing.

Hence, we can conclude that the acquisition of vocabulary is learning words in totality and yielding the power to use them effectively.