liar

noun

li·​ar ˈlī(-ə)r How to pronounce liar (audio)
Synonyms of liarnext
: 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.
Not Trump, of all presidents, an amoral self-indulgent grifter by trade and liar by practice. Joe Soucheray, Twin Cities, 4 Apr. 2026 Lerner’s work, which abounds with liars, fiction begets fiction. Literary Hub, 2 Apr. 2026 Continue reading … NUCLEAR AMBITIONS — Marco Rubio blasts Iranian foreign minister as 'a liar' about missile capabilities. FOXNews.com, 1 Apr. 2026 Conspiracy theories offer control and expertise in a world that seems chaotic and full of liars. Mike Rothschild, Big Think, 31 Mar. 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 5 Apr. 2026.

Kids Definition

liar

noun
li·​ar ˈlī(-ə)r How to pronounce liar (audio)
: a person who tells lies

More from Merriam-Webster on liar

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