Synonyms of liar
: a person who tells lies
has a reputation as a liar

Examples of liar in a Sentence

She called him a dirty liar. she knew he was a liar when he started claiming that he was an astronaut
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The actual journalism these mags do now stands out in a crowded landscape of liars and unsourced sources. — Lindsey Weber, Vanity Fair, 28 Sep. 2026 Last week, The Tonight Show hosted Suki Waterhouse singing about everyone’s favorite junket liar. — Bethy Squires, Vulture, 25 Sep. 2026 Some relatives and friends previously questioned some of Pike’s accounts of abuse and described her as a pathological liar in trial testimony, according to court documents. — Christina Coulter, PEOPLE, 25 Sep. 2026 The assumption is that liars betray themselves through spikes in those signals. — Brian O'Neill, The Conversation, 10 Sep. 2026 See All Example Sentences for liar

Word History

Etymology

Middle English, from Old English lēogere, from lēogan to lie — more at lie

First Known Use

before the 12th century, in the meaning defined above

Time Traveler
The first known use of liar was before the 12th century

Browse Nearby Words

Cite this Entry

“Liar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/liar. Accessed 3 Oct. 2026.

Kids Definition

: a person who tells lies
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster