jack (2)EnglishOxford Dictionary of Englishjack2 /dʒak / ▸ noun historical 1 another term for blackjack (sense 5 of the noun) 2 a sleeveless padded tunic worn by foot soldiers. [late Middle English: from Old French jaque; origin uncertain, perhaps based on Arabic]
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
