yard-arm From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounThe outer end of a yard, often equipped with blocks for reeving signal halyards. Related wordsSynonymsyardarmyardsail-yardyard ropehaulyardyardropeyard-ropehalliardyardwandaftarmforeyardboatyardhalyardheadyardsailyardmainyard References Wiktionary — yard-arm Wikipedia — yard-arm