Vocabulary instruction can be divided into four components: a) vocabulary acquisition, b) vocabulary comprehension, c) vocabulary application, and d) vocabulary fluency. 2. Vocabulary acquisition is the process of learning new words through exposure to them in a variety of contexts. 3. Vocabulary comprehension is the process of understanding what a word means based on its definition and how it is used in context. 4. Vocabulary application is the process of using a word in a sentence or phrase. 1. Vocabulary acquisition, 2. Vocabulary comprehension, 3. Vocabulary application, 4. Vocabulary fluency