Definition of underway
(Entry 1 of 2)
: occurring, performed, or used while traveling or in motion
underway replenishment of fuel
underway
adverb
variants:
or less commonly under way
Definition of underway (Entry 2 of 2)
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
.
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Merriam-Webster unabridged
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Time Traveler for underway
The first known use of underway was in 1720
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