ethos

noun

ˈē-ˌthäs 

: the distinguishing character, sentiment, moral nature, or guiding beliefs of a person, group, or institution

also : ethic sense 1d

Did you know?

In Greek, ēthos means “custom” or “character.” As originally used by Aristotle, it referred to a person’s character or personality, especially with respect to a balance between passion and caution. In English, ethos is used today to refer to the practices or values that distinguish one person, organization, or society from others. In rhetoric, ethos is often studied alongside pathos and logos as a technique to successfully persuade an audience. Related terms in the English language include ethics (“a branch of philosophy dealing with what is morally right or wrong”) and ethology (“a branch of knowledge dealing with human character and with its formation and evolution”).  

Synonyms

• principles
• norms
• standards
• ethics
• morals
• morality

Examples of ethos in a Sentence

The company made environmental awareness part of its business ethos.

They are working to keep a democratic ethos alive in the community.

Recent Examples on the Web

That ethos of openness and warmth is intentional, and made even more apparent after a sit down with Taleb. —Chelsea Davis, Forbes.com, 13 July 2025

That kind of live-to-work ethos isn’t for everyone, and Rilla is also very clear with prospective employees about what’s expected of them. —Brit Morse, Fortune, 11 July 2025

This ethos is very much in alignment with my personal philosophy and conduct. —Vogue, 11 July 2025

The goal of catching medical issues early is part of the clinic’s founding ethos. —Justin Fenner, Robb Report, 10 July 2025

Word History

Etymology

New Latin, from Greek ēthos custom, character — more at sib

First Known Use

1842, in the meaning defined above

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