水曜日（すいようび、suiyoubi）
- wednesday

The Japanese word 水曜日, read as すいようび (suiyoubi), means "Wednesday." It is one of the days of the week in Japanese. The word is constructed from the kanji for "water" and "day of the week". It refers specifically to the fourth day of the week, typically after Tuesday and before Thursday.

⚫︎水曜日は日本語の授業があります。 Translation: I have Japanese class on Wednesday. ⚫︎来週の水曜日に会議があります。 Translation: There is a meeting next Wednesday. ⚫︎毎週水曜日に図書館に行きます。 Translation: I go to the library every Wednesday.

You use 水曜日 when you are referring to the day of the week, Wednesday. You can use it in various contexts such as: ⚫︎Scheduling appointments ⚫︎Discussing events happening on that day ⚫︎Mentioning weekly activities that occur on Wednesdays. It can be used in both formal and informal conversations.

⚫︎The word 水曜日 is typically written with the kanji 水 (sui - water), 曜 (you - day of the week), and 日 (bi - day), representing the meaning as Wednesday. ⚫︎It is also commonly written in hiragana as すいようび. ⚫︎There are no variations in okurigana (the suffix hiragana) for this word.

There are no direct synonyms for the word 水曜日 as it is a specific day of the week.

There are no direct antonyms for 水曜日 as it is a specific day of the week. However, you can use other days of the week as antonyms in a sentence. For example, the antonym could be 月曜日 (getsuyoubi - Monday).

明日は水曜日です。 ・Translation: Tomorrow is Wednesday. ・Explanation: This sentence simply states that the upcoming day is Wednesday.

先週の水曜日は雨が降りました。 ・Translation: It rained last Wednesday. ・Explanation: This sentence describes the weather on the past Wednesday.

The word 水曜日 is derived from the Chinese and Japanese system of naming the days of the week after celestial bodies and elements. The "水" (sui) in 水曜日 comes from the Chinese character for "water". While the etymological connection isn't immediately obvious, the days of the week are associated with elements, and in this case, Wednesday is linked to the water element. The "曜日" (youbi) component means "day of the week."