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Definition of underway

underway

/ˌʌndɚˈweɪ/
un · der · way

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underway Lexical Profile

underway Game Scores & Validity

• adjective

1

Having started and currently in progress; actively happening or being done.

Example

"Preparations for the annual science symposium are already well underway."


2

Moving through the water and not at anchor, moored, or aground (especially of a ship or boat).

Example

"The ferry was finally underway after a brief delay at the harbor."

Synonyms
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Antonyms
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• adverb

1

Into operation or motion; while in progress or moving.

Example

"The expedition got underway early in the morning before the heat became intense."

Synonyms
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Word Nuance & Usage

Traditionally written as two words ("under way") in strict nautical contexts or when functioning as a predicative phrase after a linking verb, though the solid form "underway" is now widely accepted across all positions in contemporary English.

• Rhymes for underway

Word Origin & Etymology

Originated in the 18th century as the nautical phrase "under way" (influenced by Dutch "onderweg"), referring to a vessel that has weighed anchor and begun moving through the water.

Cite this Entry


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