A person who lives and thinks according to a particular philosophy.(noun)
A person who is calm and rational under any circumstances.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "philosopher" in a sentence
"As to the term philosopher's stone, he alleged that it was a mere figure, to deceive the vulgar."
"We have loitered long with Yehuda Halevi, and still not long enough, for we have not yet spoken of his claims to the title philosopher, won for him by his book _Al-Chazari_."
"But I do believe that he will be the personification of what I call the philosopher king."