You'd likely use this kind of advanced vocabulary in more formal conversations or when taking examinations.

Advanced Business English Vocabulary

To serve as a typical example or representation of.

Gradually causing harm in a way that is not easily noticed.

Inclined to keep one's thoughts or feelings to oneself; reserved.

Intended for or likely to be understood by only a small number of people with a specialized knowledge or interest.

Showing great attention to detail; very careful and precise.

The state of being everywhere, especially at the same time.

A preference or liking for something; a bias in favor of something.

To cause something to happen suddenly or unexpectedly.