船舶|せんぱくsenpaku[1]atamadaka (head-high)

1. nounvessel; ship; shipping; seacraft
   懐中電灯かいちゅうでんとうは、船舶せんぱく同士どうしとか、街まちの通とおりを走はしっている自動車じどうしゃに向むけて合図あいずを伝つたえる。↗

   Flashing lights transmit messages between ships and to motorists along city streets.

• Synonym船ふねNeutralThe everyday word for a boat or ship, also used for tubs, vats and other ship-shaped containers; 「船舶」 is the formal written term in legal and maritime contexts.
• SynonymシップNeutralA loanword used mostly as a component of compounds such as 「フラッグシップ」; to refer to a ship on its own, use 「船」.
• Synonym舟・船NeutralA general term for boats large and small: 「舟」 leans toward small boats, 「船」 toward large ships; 「船舶」 is the more formal choice.
• RelatedウォータークラフトNeutralA loanword covering watercraft in general, used mainly in technical or professional settings; in everyday speech just say 「船」.
• Related舟船WrittenA written, rarely used word for boats and ships; say 「船」 in daily conversation and 「船舶」 in formal contexts.

Use 「船舶」 in formal written contexts such as law and maritime affairs, as in 「船舶免許」. In everyday speech say 「船」; for small boats 「舟」 works. The loanword 「シップ」 appears mostly in compounds.

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

1. ふね。舟ふね船せん。