a portable bridge for boarding and leaving a vessel at dockside
gangboard in American English
(ˈɡæŋˌbɔrd, -ˌbourd)
noun
Nautical
a raised walk on a sailing ship, crossing the waist and connecting the forecastle directly with the quarterdeck
Word origin
[1740–50; gang1 + board]This word is first recorded in the period 1740–50. Other words that entered Englishat around the same time include: caricature, damper, kingfish, picnic, snappy