noun
houseboat; roofed pleasure boat
A traditional Japanese roofed boat used for dining, parties, and sightseeing, often on rivers or in harbors.
東京湾で屋形船に乗って、夜景を楽しんだ。
We enjoyed the night view from a yakatabune on Tokyo Bay.
忘年会は屋形
We plan to hold the year-end party on a yakatabune.