adviser

noun

ad·​vis·​er əd-ˈvī-zər 

variants or advisor

: 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

Did you know?

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.

Synonyms of adviser

• consultant

Examples of adviser in a Sentence

our financial adviser had some words of caution about buying a second home

Recent Examples on the Web

Joe Brusuelas, senior economist at RSM US, highlighted a few of those factors when pushing back on White House economic adviser Kevin Hassett’s claim Monday that subdued job gains are primarily the result of lower population figures and higher productivity. —Alicia Wallace, CNN Money, 11 Feb. 2026

Jahmila Edwards, the mayor’s head of intergovernmental affairs, Simonia Brown, a senior adviser, and Emmy Liss, head of child care, also attended the hearing. —Josephine Stratman, New York Daily News, 11 Feb. 2026

At the top of the list is the United Arab Emirates, which advisers consistently describe as the leading beneficiary of the current cycle. —Lee Ying Shan, CNBC, 11 Feb. 2026

Saini, a longtime industry executive with experience working across brands, manufacturers and government stakeholders, will continue as interim CEO through the end of May and stay on as an adviser to support McGuire’s transition. —Rhonda Richford, Footwear News, 10 Feb. 2026

Word History

Etymology

advise + -er entry 2, -or entry 1

First Known Use

circa 1536, in the meaning defined above

Rhymes for adviser

• advisor
• devisor
• divisor
• franchisor
• incisor
• quantizer
• reviser
• revisor
• advertiser
• analyser
• analyzer
• appetizer