fast tide; rapidly changing tide
Rare term referring to a tide that flows swiftly or changes rapidly, often used in nautical or literary contexts.
この海峡は早潮で知られている。
This strait is known for its fast tides.
Compound of 早 (はや, 'fast') and 潮 (しお, 'tide'). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning.