土日|どにちdonichi[0]heiban (flat)

1. nounweekend; Saturday and Sunday

• Synonym週末しゅうまつNeutralMeans the end of the week and can sometimes include Friday evening; 「土日」 points squarely at Saturday and Sunday.
• RelatedウィークエンドNeutralLoanword for the weekend, found mostly in titles and advertising; in everyday speech 「週末」 or 「土日」 is what people say.
• Antonym平日へいじつNeutralDays other than Sundays and holidays — in practice, weekdays; the opposite of 「土日」.

Use 「土日」 when you mean Saturday and Sunday specifically, as in 「土日休み」; for the weekend in general say 「週末」. For Monday to Friday, say 「平日」.

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

1. 土曜日どようびと日曜日にちようび。週末しゅうまつ。