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Definition of airline

airline

/ˈɛərlaɪn/
air · line
Plural:airlines
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airline Lexical Profile

airline Game Scores & Validity

• noun

1

A commercial enterprise or organization that provides regular public transportation of passengers and freight by aircraft.

Example

"The national airline announced three new international routes for the upcoming summer travel season."

2

A pipe, hose, or tube designed to supply or conduct compressed air to pneumatic tools, diving equipment, or machinery.

Example

"The mechanic checked the rubber airline for leaks before connecting the pneumatic wrench."

Synonyms
View all synonyms for airline

• Rhymes for airline

• Nearby Words

airless
airlessness
airlift
airline
airliner
airlock
airmail

Word Origin & Etymology

Coined in the early 19th century as a compound of 'air' and 'line', originally referring to a direct, straight-line distance through the air (as the crow flies) before being adopted in the early 20th century for commercial aviation companies.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Airline. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/airline
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