休日|きゅうじつkyuujitsu[0]heiban (flat)

1. nounholiday; day off
   クリスマスは特別とくべつな休日きゅうじつだ。↗

   Christmas is a special holiday.

• Synonym休みやすみNeutralThe most common, everyday word — it covers rest, breaks, vacations and even absence. 「休日」 is narrower and more formal: days when work or school is closed.
• SynonymホリデーNeutralA loanword heard mostly in product and event names, rarely in everyday talk. For an ordinary day off, 「休日」 is the normal choice.
• SynonymおやすみNeutralThe polite form of 「休み」; it can also mean sleep or 'good night'. 「明日はお休みです」 sounds softer than saying 「休日」.
• Related休暇きゅうかNeutralLeave officially granted by a company or school, such as annual leave; it can be a single day or even half a day. 「休日」 refers to weekly or national-holiday days off.
• RelatedバカンスNeutralFrom French; like 「バケーション」, it means a long vacation and turns up often in travel advertising. Use 「休日」 for a single day off.
• Related暇ひまCasualColloquial. Free time with nothing to do, as in 「暇がない」. 「休日」 is a day officially designated as a day off, whether you are busy or not.
• Related定休ていきゅうNeutralA shop's or business's regular fixed closing day, usually in the set phrase 「定休日」. 「休日」 is a general day off, not tied to shops.
• Related祭日さいじつNeutralOriginally a day of religious rites; in speech people often call national holidays 「祭日」, though the formal term is 「祝日」. 「休日」 covers a wider range of days.
• RelatedバケーションNeutralA loanword for a long, leisure-and-travel style vacation. Not used for a single day off — for that say 「休日」.
• Antonym平日へいじつNeutralThe opposite of 「休日」: days other than Sundays and holidays, as in 「平日は忙しい」. The two are often used as a pair.
• Antonym仕事日しごとびNeutralA day on which you have to work, from the individual's standpoint. For non-holiday days in general, 「平日」 is the usual word.

「休日」 is the formal word for days when work or school is closed; everyday speech prefers 「休み」 or 「お休み」. Company- or school-granted leave is 「休暇」, long leisure trips are 「バケーション」/「バカンス」, and 「休日」 pairs with 「平日」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 業務ぎょうむ・授業じゅぎょうが休やすみになる日ひ。
2. 日本にっぽんにおいて、「国民の祝日こくみんのしゅくじつに関かんする法律ほうりつ」で定さだめられた休日きゅうじつ。