time frame

noun

variants or less commonly timeframe
: a period of time especially with respect to some action or project

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time frame or timeframe?

Should time frame be written as one word or two? At present, it is most commonly styled as two words with no hyphen in between.

Compounds, or “words consisting of components that are words,” come in three varieties: open (two words with a space between them, such as lima bean), hyphenated (two words with a hyphen between them, such as runner-up), and closed (one word, such as rowboat). In some cases, competing compound stylings appear in different publications. This is generally acceptable as long as the spelling remains consistent throughout a book or periodical.

Compounds have a tendency to move from open to closed as time goes by, and our evidence suggests that time frame is headed in this direction. At this point, however, the open compound is far more prevalent.

Examples of time frame in a Sentence

They were not able to finish the project within the established time frame.
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 Detroit automaker also announced a new stock buyback program of $20 billion , but didn't provide a specific time frame for the repurchase. — Sarah Min, CNBC, 20 Oct. 2026 What’s more, these studies generally last just a few weeks – far too short a time frame to draw conclusions about long-term health impacts. — Garrett M. Broad, The Conversation, 19 Oct. 2026 Their average life span is about 8,000 hours, but turning them on and off frequently shortens this time frame. — Karen Brewer Grossman, Southern Living, 17 Oct. 2026 Asked whether the pope could be discharged from the hospital and return to the Vatican on Saturday, a spokesperson said doctors had established a time frame for his hospital stay. — ABC News, 16 Oct. 2026 See All Example Sentences for time frame

Word History

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of time frame was in 1893

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Cite this Entry

“Time frame.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/time%20frame. Accessed 22 Oct. 2026.

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