便器（べんき、benki）
- toilet bowl

The Japanese word 便器, べんき, refers to a toilet bowl or a commode. It is the specific fixture where one urinates and defecates. It includes the bowl itself and any associated flushing mechanisms.

⚫︎ トイレの便器 Translation: The toilet bowl. ⚫︎ 便器を掃除する Translation: To clean the toilet bowl. ⚫︎ 新しい便器を取り付ける Translation: To install a new toilet bowl.

This word is commonly used in discussions about bathrooms, plumbing, and sanitation. It's a formal and direct term. You would use 便器 when describing or referring to the toilet bowl itself. It is suitable for both written and spoken Japanese.

⚫︎ The word 便器 is primarily written in kanji. ⚫︎ The reading, べんき, is written in hiragana. ⚫︎ There are no significant variations in the okurigana.

⚫︎ トイレ (toire): Toilet (a more general term) ⚫︎ 便座 (benza): Toilet seat ⚫︎ There are no perfect synonyms for the specific fixture.

There aren't direct antonyms for 便器 as it refers to a specific object.

この便器は自動で洗浄機能が付いています。 ・Translation: This toilet bowl has an automatic cleaning function. ・Explanation: This sentence describes a feature of the toilet bowl.

古い便器は水圧が弱いので、新しいものに交換することにしました。 ・Translation: The old toilet bowl has weak water pressure, so I decided to replace it with a new one. ・Explanation: This sentence explains a reason for replacing the toilet bowl.

The word 便器 is a compound word. 便 (ben) means "excrement" or "convenience" (as in, a place of convenience) and 器 (ki) means "vessel" or "container." Therefore, 便器 literally means "a vessel for excrement."