海路(かいろ)

かいろ
noun, adverb
sea route; by sea
1. sea route; sea lane; ocean route
A route across the sea used for shipping or travel by boat.
海路(かいろ)が開(ひら)かれた。
A sea route was opened.
古代(こだい)の海路(かいろ)は貿易(ぼうえき)に重要(じゅうよう)だった。
Ancient sea routes were important for trade.
海賊(かいぞく)が出没(しゅつぼつ)する海路(かいろ)は避(さ)けなければならない。
Sea routes where pirates appear must be avoided.
2. by sea; via sea travel
Used adverbially to mean 'by ship' or 'via sea,' describing the method of travel or transport.
荷物(にもつ)を海路(かいろ)で送(おく)る。
I'll send the luggage by sea.
海路(かいろ)で三日(みっか)かかる。
It takes three days by sea.
大量(たいりょう)の物資(ぶっし)は海路(かいろ)で輸送(ゆそう)した方(ほう)がコストが安(やす)い。
It's cheaper to transport large quantities of goods by sea.

Used both as a noun (sea route) and adverbially (by sea). Common in discussions of trade, history, logistics, and travel.

FORMATION:
海(かい) (sea) + 路(ろ) (route, road)

COMMON COLLOCATIONS:

  • 海路(かいろ)で: by sea
  • 海路(かいろ)を開拓(かいたく)する: to pioneer a sea route
  • 海路(かいろ)の安全(あんぜん): safety of sea routes
  • 海路(かいろ)を利用(りよう)する: to use the sea route

PARALLEL TERMS:

  • 空路(くうろ): by air; air route
  • 陸路(りくろ): by land; overland route
  • 水路(すいろ): waterway (rivers, canals)
  • 航路(こうろ): shipping lane, navigation route — more specific to established commercial shipping lanes
general
Added 2026.3.29 20:11
20000/20373_kairo