mentor
noun
a wise and trusted counselor or teacher.
mentor
1 American
[men-tawr, -ter]
/ ˈmɛn tɔr, -tər /
Mentor
2
American
[men-ter]
/ ˈmɛn tər /
noun
Mentor
3
American
[men-tawr, -ter]
/ ˈmɛn tɔr, -tər /
noun
mentor
1
British
/ ˈmɛntɔː /
noun
verb
Mentor
2
British
/ ˈmɛntɔː /
noun
Usage
What does mentor mean? A mentor is the main person you rely on to give you advice and guidance, especially in your career. Mentor can also be used as a verb meaning to act as a mentor, as in I mentor two of my students. If you have a mentor, you are the mentee. Example: It feels strange to me that I’m now more famous than my mentor—I wouldn’t be where I am without her.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of mentor
First recorded in 1740–50; after Mentor (from Greek Méntōr )
Explanation
A mentor is a person who trains and guides someone, like the second-grade English teacher who saw the spark of creativity in your writing and encouraged you to become a professional author. The original Mentor was a character in Homer's epic poem The Odyssey; Mentor looked after Odysseus's family, particularly his son Telemachus, while Odysseus was off fighting in the Trojan War. Today the word is used to describe any person who acts as an advisor or teacher. As a noun, mentor describes the coach who taught you to play baseball. As a verb, mentor is what the coach does to help you improve your swing.
Vocabulary lists containing mentor
The Hunger Games
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Monster
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You Name It: Eponyms
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The crew of the Mentor traveled halfway around the world before pausing to take on supplies.
From The Wall Street Journal • May 20, 2026
Like Herman Melville’s Pequod, the Mentor sought the sperm whale and its barrels of valuable oil.
From The Wall Street Journal • May 20, 2026
In November 1832, eight survivors of the sunken American whaleship Mentor set out into the Pacific Ocean in a pair of rickety boats.
From The Wall Street Journal • May 20, 2026
High-profile athletes have spoken about their decision to freeze their eggs, including England cricket captain Nat Sciver-Brunt and former England netballer Geva Mentor.
From BBC • Jun. 11, 2025
“Me! Me!” the schoolteacher called out in a demanding voice, and as Matty watched, Mentor shoved the people standing in front of him aside so that he would be noticed.
From "Messenger" by Lois Lowry
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
