The store of vocabulary a speaker can use with facility is called

• A. Repertoire
• B. Lexicon
• C. Corpus
• D. Glossary

Answer: (A)

The main idea here is how we describe the set of language resources a speaker can draw on with ease. A speaker’s repertoire is that range of linguistic tools—vocabulary, phrases, collocations, idioms, and even different styles or registers—that they can access and use fluently in real time. It isn’t just about knowing words; it’s about being able to deploy them smoothly in conversation or writing. Lexicon is the mental dictionary of word meanings, which is related but focuses more on knowledge than on actual use. A corpus is a large collection of texts used for analysis, not a person’s own store of words. A glossary is simply a list of terms with definitions. So the best fit for “store of vocabulary a speaker can use with facility” is repertoire.