underway

1 of 2

adjective

un·​der·​way ˌən-dər-ˈwā How to pronounce underway (audio)
: occurring, performed, or used while traveling or in motion
underway replenishment of fuel

underway

2 of 2

adverb

variants or less commonly under way
1
: in motion : not at anchor or aground
The ship was underway at dawn.
2
: into motion from a standstill
The train should be underway again soon.
3
: in progress : happening now
Preparations for the celebration are already underway.
A search is underway.
The season got underway with a bang.

Examples of underway in a Sentence

Adverb construction of the new shopping mall is under way
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.
Adjective
There are also plans underway to transform the bathhouse into a full-scale spa. Condé Nast, Condé Nast Traveler, 2 May 2026 If the desalination project moves forward, work in the North Day Use area of Doheny State Beach could get underway by October, and the design, construction and performance testing of the system would happen in the coming years, with the desal operation online by 2030. Laylan Connelly, Oc Register, 2 May 2026
Adverb
As for what’s being done already, some speakers pointed to efforts underway in Aurora in support of workers and immigrants. Molly Morrow, Chicago Tribune, 1 May 2026 Importantly, the judge will make the final call in both phases of litigation, with the jury’s opinion in the first phase underway now considered advisory. Ashley Belanger, ArsTechnica, 30 Apr. 2026 See All Example Sentences for underway

Word History

Etymology

Adverb

probably from Dutch onderweg, from Middle Dutch onderwegen, literally, under or among the ways

First Known Use

Adjective

1743, in the meaning defined above

Adverb

1720, in the meaning defined at sense 1

Time Traveler
The first known use of underway was in 1720

Browse Nearby Words

Cite this Entry

“Underway.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underway. Accessed 5 May. 2026.

Kids Definition

under way

adverb
1
: in or into motion
a ship getting under way
2
: in progress
preparations are under way

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