ad·​vis·​er | \ əd-ˈvī-zər How to pronounce adviser (audio) \
variants: or advisor

Definition of adviser

: someone who gives advice a financial/investment adviser She was not signing on as a domestic or foreign-policy adviser— Peggy Noonan In this meeting, Clifford, who had been a senior Truman aide and an adviser to Kennedy, used George Ball's memorandums in pleading that the war could not be won.— Sidney Blumenthal In December, she and her thesis advisor, Neal Evans, used the camera, attached to a 50-inch telescope, to look for infant stars in a giant molecular cloud in the constellation Orion.— Andrew Chaikin In a real sense, the emperor's astronomical ministers functioned like advisors in a modern president's cabinet, advising him on how best to conduct the affairs of state in a harmonious and effective manner.— Laurence A. Marschall

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What's the difference between adviser and advisor?

Adviser or advisor? It doesn't matter what your computer's spellcheck tells you, adviser and advisor are both correct. Although there is enough overlap between these two words that they are generally considered simply to be different ways to spell the same word, there are some cases in which one tends to be used more often than the other. Some people feel that advisor is more formal, and it tends to be found more often when applied to official positions, such as an advisor to a president. When referring to someone who is serving in a military role, especially when using the term as a euphemism (as when claiming that troops are actually military advisers), then adviser is somewhat more common.

Examples of adviser in a Sentence

Recent Examples on the Web Dennison, serving as the faculty adviser, followed along with the weekly lesson and learned himself. Jess Nocera,, "River Hill student’s all-female coding nonprofit reaches from Howard County to Morocco," 4 Dec. 2019 That team of individuals includes Marc Mellon, the Connecticut sculptor who is crafting the statue and who serves as a special adviser to the committee. Marc Bona, cleveland, "George Shuba-Jackie Robinson famed handshake to be immortalized with statue in Youngstown," 3 Dec. 2019 Michael Flynn, a retired general, and H.R. McMaster, an active one, also served as Mr Trump’s first two national security advisers, lending a veneer of normalcy to his anarchic foreign policy. The Economist, "Donald Trump falls out with the military establishment he once wooed," 28 Nov. 2019 The New York Times reported in September that White House advisers -- namely, Cipollone and Eisenberg -- knew about the whistleblower complaint in August. Arkansas Online, "Second panel sets session in impeachment inquiry," 27 Nov. 2019 Trump blocked McGahn’s appearance, saying the attorney had cooperated with Mueller’s probe, was a key presidential adviser, and could not be forced to answer questions or turn over documents., "Most popular on," 26 Nov. 2019 This summer, Jeffrey Goldberg, The Atlantic’s editor in chief, interviewed Chris Christie, the former governor of New Jersey and a onetime Trump adviser. Megan Garber, The Atlantic, "Why Isn't a Rape Allegation Worth an Impeachment Inquiry?," 22 Nov. 2019 One day on the campaign trail, Rebecca Pearcey, the national political director and senior adviser to Elizabeth Warren, inadvertently ate three breakfasts before 3 p.m. because the campaign bus kept making stops at Waffle House and Starbucks. Laura Bassett, Marie Claire, "The President Makers," 23 Oct. 2019 Still, a swift dismissal doesn’t appear on the horizon, according to nine staffers and outside advisers, who noted the difficulties Trump has faced attracting and retaining high quality White House staff even before the impeachment episode. San Diego Union-Tribune, "Mulvaney getting second-guessed on his defense of Trump," 21 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'adviser.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of adviser

circa 1536, in the meaning defined above

History and Etymology for adviser

advise + -er entry 2, -or entry 1

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Time Traveler for adviser

Time Traveler

The first known use of adviser was circa 1536

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Statistics for adviser

Last Updated

7 Dec 2019

Cite this Entry

“Adviser.” The Dictionary, Merriam-Webster Inc., Accessed 9 December 2019.

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More from Merriam-Webster on adviser

Thesaurus: All synonyms and antonyms for adviser

Spanish Central: Translation of adviser

Nglish: Translation of adviser for Spanish Speakers

Britannica English: Translation of adviser for Arabic Speakers

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