English Reference

Word

underway

Phoneticsun·der·way

US/ˌəndɝˈweɪ/

UK/ˌʌndəwˈeɪ/

Definitions

01in progress

B2

adj. already started and currently happening.

adj. currently in progress or being carried out. Often functions as a predicative adjective following the verb 'to be' or 'to get'.

“The construction project is finally underway after months of planning.”

“Preparations for the international summit are already well underway, with security teams coordinating across several different jurisdictions.”

Usage

Usually appears after the verb 'to be' or 'to get'; it is rarely used before a noun.

02an underpass

C2

n. a path or road that goes under another road or a railway line.

n. a passage, such as a tunnel or underpass, that allows traffic or pedestrians to pass beneath an obstacle.

“The old underway allowed the villagers to cross beneath the busy tracks.”

“The architectural plans included a narrow underway to facilitate pedestrian movement without disrupting the flow of the main thoroughfare.”

Archaic

Teaching tip

This noun sense is very rare in modern English; 'underpass' or 'tunnel' is almost always preferred.

Synonyms

underpasssubwaytunnel

Antonyms

Real-World Examples

“Search efforts to recover the remaining victims are still underway.”
Al Jazeera · 17 Aug 2026
“The men's final gets underway at 9:33pm, with the women's medal race beginning at 9:48pm.”
BreakingNews.ie · 15 Aug 2026

Etymology

Calque of Dutch onderweg (“underway”), equivalent to under- + way. Compare also German unterwegs.

From under + way.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

Scan code

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English Reference