Someone that uses their
mind and exercises their imagination often, and can be specialized. Intellectuals need not be advanced in the english language or literature and they may come from any walk of life; scientists, for example, tend to have an extensive vocabulary in terms relevant to their own
field, while novelists tend to have a wider vocabulary in
non-scientific terms. Vocabulary isn't the determining factor of what makes an intellectual though; it is mostly a matter of their ability to
think, create change, and form new ideas.
Albert
Einstein, Plato, Aristotle, Bruce Lee, Shigeru Miyamoto,
Bill Gates, Alfred Russel
Wallace, Alfred Wegener, Doris Lessing, Sir Vidiadhar Surajprasad Naipaul, Gao Xingjian, Vincent van Gogh, Richard F. Heck, Isaac Newton, are all examples of the diversity of intellectuals.