六日6th day of the month; six days
Noun
六日戦争Six-Day War (June 5-10, 1967); Third Arab-Israeli War
Noun
六日間戦争Six-Day War (June 5-10, 1967); Third Arab-Israeli War
Noun
六日の菖蒲something that comes too late to be useful; iris (blooming) on the 6th (i.e. one day too late for the Boy's Day celebration)
Expression