Noun

(en noun)

a road, track, path, or street for going under another way or obstacle

:* {{quote-book

, year=2005 , year_published= , edition= , editor= , author=Donovan L. Hofsommer , title=Minneapolis and the Age of Railways , chapter=Adrift citation , genre= , publisher=Univ. of Minnesota Press , isbn=9780816645015 , page=152 , passage=As Minneapolis grew, the city demanded that M&StL construct "underways " beneath city roadways. }}

an underground passage, tunnel

:* {{quote-book

, year=2004 , year_published= , edition= , editor= , author=Alan Goldfein , title=Europe's Macadam, America's Tar: How America Really Compares to "Old Europe" , chapter=A Wonderful Drive citation , genre= , publisher=American Editions , isbn=9783000143571 , page=46 , passage=There are in fact many such subterranean underways in Germany, speeding traffic beneath bergs, burgs and villages and into and around and under big city downtowns ... }}

a voyage, especially underwater

:* {{quote-book

, year=2008 , year_published= , edition= , editor= , author=Alfred Scott McLaren, William R. Anderson , title=Unknown Waters: A First-Hand Account of the Historic Under-ice Survey of the Siberian Continental Shelf by USS Queenfish (SSN-651) , chapter=To Severnaya Zemlya and the Beginning of the Shelf Survey citation , genre= , publisher=Univ. of Alabama Press , isbn=9780817316020 , page=179 , passage=I had been the diving officer on three previous submarines, … , and was an experienced officer of the deck with many underways and landings under my belt on all three.}}

(computer science) subroutine

:* {{quote-book

, year=2003 , year_published= , edition= , editor=Marvin Zelkowitz , author= , title=Advances in Computers: Information Repositories , chapter=Chapter 5 Are Scripting Languages Any Good? , url= , genre= , publisher=Academic Press , isbn=9780120121571 , page=226 , passage=However, the class of programs represented by the phonecode task is rather large and common, especially in an area for which script languages are often used, namely transcribing text files from one format into another, perhaps including some semantic processing underways . }}