halyard Syllabification: (hal·yard)Pronunciation: /ˈhalyərd/Definition of halyard noun a rope used for raising and lowering a sail, spar, flag, or yard on a sailing ship. Origin: late Middle English halier, from hale2 + -ier. The change in the ending in the 18th century was due to association with yard1halyard in other Oxford dictionaries Definition of halyard in the British & World English dictionary