time machine

noun

: a hypothetical device that permits travel into the past and future

Examples of time machine in a Sentence

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.
Still, there’s fun to be had in this time machine whose ultimate destination is dad-joke heaven. Judy Berman, Time, 24 June 2026 If music can be a time machine, the Instagram account @gapplaylists is a DeLorean. Brendan Hay, SPIN, 22 June 2026 This often manifests in outsized scientific inventions like a backyard roller coaster or a time machine, all in service of their eternal quest for fun. Christian Holub, Entertainment Weekly, 21 June 2026 From $12,080 No one has invented a time machine yet, but this adults-only hotel in Milan’s answer to the Hamptons is the next best thing. Todd Plummer, Robb Report, 19 June 2026 See All Example Sentences for time machine

Word History

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of time machine was in 1894

Browse Nearby Words

Cite this Entry

“Time machine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/time%20machine. Accessed 5 Jul. 2026.

Kids Definition

time machine

noun
: a fictional machine that allows one to travel backward or forward in time
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