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Definition of truther

truther

/ˈtruːθər/
truth · er
Plural:truthers
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truther Lexical Profile

truther Game Scores & Validity

• noun

1

A person who doubts the generally accepted or official account of an event, believing that a conspiracy or cover-up is concealing the true facts (originally and especially in reference to the September 11, 2001, terrorist attacks).

Example

"The documentary examined how online forums allowed the truther movement to spread alternative theories about the historical event."

Synonyms
View all synonyms for truther

Word Nuance & Usage

Although originally adopted as a self-designation by activists claiming to seek hidden facts, the term is now predominantly used in a derogatory or skeptical manner to describe conspiracy theorists.

• Nearby Words

trustworthy
trusty
truth
truther
truthful
truthfully
truthfulness

Word Origin & Etymology

Coined in the early 2000s from the noun 'truth' and the agent suffix '-er', initially referring to members of the '9/11 Truth movement' who disputed the official account of the September 11 attacks.

Cite this Entry

Wordmom. (2026). Definition of Truther. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/truther
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