pre·​flight | \ ˈprē-ˌflīt How to pronounce preflight (audio) \

Definition of preflight

 (Entry 1 of 3)

: preparing for or preliminary to flight (as of an aircraft) a preflight inspection


preflighted; preflighting; preflights

Definition of preflight (Entry 2 of 3)

transitive verb

: to inspect (an aircraft) before a flight



Definition of preflight (Entry 3 of 3)

: a preflight inspection of an aircraft

Examples of preflight in a Sentence

Recent Examples on the Web: Adjective

Her days are filled with endless studying, preflight meetings, flying, post-flight debriefings, and meeting with engineers. Dennis Hohenberger, Courant Community, "Women Take Flight At New England Air Museum," 14 Mar. 2018 According to the NTSB, the crash stemmed from a preflight hydraulic check in which Mahany turned off a switch, cutting hydraulic pressure to the tail rotor hydraulic circuit. Jesse Paul, The Denver Post, "Flight For Life helicopter crash in Frisco that killed pilot was caused by hydraulic issue, NTSB finds," 28 Mar. 2017

Recent Examples on the Web: Noun

Students must complete multiple phases of flight training in order to graduate, including aviation preflight indoctrination, primary flight training, and advanced flight training. Lt. Paula Knight, Houston Chronicle, "Houston native trains to serve as the next generation of U.S. Naval aviation warfighters," 13 June 2019 Apparently this passenger did not pay attention to the preflight instructions or really didn’t care. Yesha Callahan, The Root, "Southwest Flight Diverted After Passenger Tried to Join the Mile-High Weed Club," 31 May 2018 Flight attendants began helping passengers use masks as they were instructed in a preflight safety briefing, after donning their own portable breathing apparatuses, said passenger Kristopher Johnson. Doug Cameron, WSJ, "Southwest Accident Shows Passengers Unprepared for Emergencies," 19 Apr. 2018 Airlines have tried different ways to get passengers to listen to preflight announcements. Doug Cameron, WSJ, "Southwest Accident Shows Passengers Unprepared for Emergencies," 19 Apr. 2018 About 93 percent of the changes reverted to preflight levels within six months of Scott's return to Earth. Sarah Kaplan,, "The truth about astronaut Scott Kelly's 'space genes'," 16 Mar. 2018 About 93 percent of the changes reverted to preflight levels within six months of Scott's return to Earth. Sarah Kaplan, Houston Chronicle, "The truth about astronaut Scott Kelly's viral 'space genes'," 16 Mar. 2018 The change related to only 7 percent of the gene expression that changed during spaceflight that had not returned to preflight after six months on Earth. Daniel Victor,, "Astronauts Mark and Scott Kelly are still identical twins, despite the headlines," 16 Mar. 2018 After nearly a decade of development, the Falcon Heavy has finally reached the launch pad and undergone all of its preflight tests. Eric Berger, Ars Technica, "SpaceX’s colossal Falcon Heavy has taken flight [Updated]," 6 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'preflight.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of preflight


1942, in the meaning defined above


1945, in the meaning defined above


1950, in the meaning defined above

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Time Traveler for preflight

The first known use of preflight was in 1942

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Rhyming Dictionary: Words that rhyme with preflight

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incapable of being surmounted or overcome

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