so·​far ˈsō-ˌfär How to pronounce sofar (audio)
: a system for locating an underwater explosion at sea by triangulation

Word History


sound fixing and ranging

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of sofar was in 1946

Dictionary Entries Near sofar

Cite this Entry

“Sofar.” Dictionary, Merriam-Webster, Accessed 23 Mar. 2023.

Love words? Need even more definitions?

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

Challenging Standardized Test Words

  • high school student holding a pencil leaning over a sat test
  • Despite the cacophony, the student tried to study.
Spell It

Hear a word and type it out. How many can you get right?

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?