also: ひぶね
noun
fire ship
Historical naval term for a vessel set on fire and sent into an enemy fleet. Both readings かせん and ひぶね can be used, but かせん is more common in historical contexts.
戦国時代の海戦では火船が使われた。
Fire ships were used in naval battles during the Warring States period.
noun
Only with reading かせん
Refers to a steam-powered vessel, especially a paddle steamer. This sense is restricted to the reading かせん and is now largely historical.
明治時代、火船が外国との貿易に使われた。
In the Meiji period, steamships were used for trade with foreign countries.
noun
fire-lit fishing boat
Only with reading ひぶね
A boat that used an open fire to attract fish during night net fishing, before electric lights were introduced. This sense is restricted to the reading ひぶね.
昔の漁師は火船で魚を集めた。
Fishermen in the past gathered fish using fire-lit boats.
Compound of 火 (fire) and 船 (ship). The reading かせん is the on'yomi, while ひぶね is the kun'yomi. The different readings correspond to distinct historical uses.