明日|あしたashita[3]odaka (tail-high)

1. noun, adverbtomorrow
   あしたは一いち日にち中ちゅうひまです。↗

   I'll be free all day tomorrow.
2. noun, adverbnear future

• Related翌日よくじつNeutralThe day after a given reference day, used mostly in narrating past events or plans; 「明日」 always takes today as its reference point.
• Relatedまたの日またのひNeutralSome other day, another day — often used to politely put something off, as in 「またの日にしましょう」; unlike 「明日」 it does not refer to tomorrow specifically.
• Related近い将来ちかいしょうらいWrittenA written/formal term for the near future; corresponds to the figurative sense of 「明日」 but is broader in scope than tomorrow.
• Antonym昨日きのうNeutralThe opposite of 「明日」: the day before today.
• Antonym今日きょうNeutralThe opposite of 「明日」: 「今日」 is the current day, 「明日」 the day after it.

For tomorrow, use 「明日」. Use 「翌日」 for the day after some other reference day, 「またの日」 for another day (e.g. politely putting something off), and 「近い将来」 for the near future in formal prose.

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

1. （みょうにち、あす、あした）今日きょうの次の日つぎのひであり、明後日みょうごにちの前の日まえのひ。
2. （あす、あした） （比喩的ひゆてきに）未来みらい、将来しょうらい。
3. 日本語にほんご姓せい（名字みょうじ）の一ひとつ。