ˈtäpməst ( usu naut ), -pˌmast, -ˌmaa(ə)st, -ˌmaist, -ˌmȧst noun
Etymology: Middle English toppe maste, from toppe top + maste, mast mast — more at top , mast
: the mast next above the lower mast that is topmost in a fore-and-aft rig and below the topgallant mast in a square-rigged ship — see ship illustration