pre·​fo·​cus (ˌ)prē-ˈfō-kəs How to pronounce prefocus (audio)
prefocused; prefocusing; prefocuses

transitive verb

: to focus (something) beforehand
prefocus automotive headlights before installation

Word History

First Known Use

1948, in the meaning defined above

Time Traveler
The first known use of prefocus was in 1948

Dictionary Entries Near prefocus

Cite this Entry

“Prefocus.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2023.

Love words? Need even more definitions?

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

Fashionable Words

  • dog-sunglasses-scarf
  • Which of these items is named for a deadly weapon?
True or False

Test your knowledge - and maybe learn something along the way.

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?