湯船・湯舟・湯槽|ゆぶねyubune[1]atamadaka (head-high)

1. nounbathtub
2. nounboat with a bathtub rented to customers (Edo period)

• Synonym浴槽よくそうNeutralThe neutral, slightly formal term for the tub itself, common in equipment descriptions, as in 「浴槽を洗う」. 「湯船」 is the everyday word for soaking, as in 「湯船につかる」.
• SynonymバスタブNeutralA loanword for the bathtub with a Western feel; 「湯船」 is the everyday native-Japanese word.
• Synonym風呂桶ふろおけNeutralA wooden, tub-style bathtub, or the small bucket for scooping water at the bath; carries a traditional feel.

For everyday talk about the tub you soak in, use 「湯船」, as in 「湯船につかる」. Use 「浴槽」 for the fixture in slightly formal or equipment contexts, 「バスタブ」 for a Western-style tub, and 「風呂桶」 for a wooden tub or the bath bucket.

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

1. 入浴にゅうよくの際さい、水みずを入いれて沸わかしたり、湯ゆを入いれたりする全身ぜんしんが入はいる程度ていどの桶おけ。浴槽よくそう。