a-ˈshipboard,advb.phr. On board ship. 1598Sylvester Du Bartas ii. ii. Argt. (1643) 113 Noah prepares the Ark..His exercise a-ship-board.1680Trial Earl Castlemaine in Howell St. Trials (1816) VII. 1074, I went a shipboard in April.1870Morris Earthly Par. I. ii. 471 At point to go a-shipboard.