(nautical) A dead calm.

(historical) A unit of area equal to 7840 square yards (approximately 0.66 hectares or 1.62 statute acres).

(organic chemistry) A particular resorcinolic lipid.

(nautical) The head of a sail tied up.

(US) A potato, distinguished from a sweet potato.

plural of Irish Setter

(historical) The Irish police force when Ireland was part of the United Kingdom of Great Britain and Ireland.

(historical) An autonomous dominion under nominal British sovereignty that included most of the island of Ireland, created in 1922 as part of a treaty between the British government and Irish republicans.

A drink of coffee made with Irish cream and hazelnut liqueur.

plural of nutty Irishman