What does "sea area" mean?

Any of the 31 areas of sea, surrounding the British Isles, that are used in the Shipping Forecast

What is a synonym for "sea area"?

Common synonyms include: designated zone, marine, marine area, marine zone, nautical, ocean area.

noun

noun ·Rare ·Advanced level

Noun

1
Any of the 31 areas of sea, surrounding the British Isles, that are used in the Shipping Forecast UK