Synonyms:
- Antarctic Zone,
- Arctic Circle,
- Arctic Zone,
- Frigid Zones,
- Torrid Zone,
- Tropic of Cancer,
- Tropic of Capricorn,
- Variable Zones,
- anticyclone,
- antitrades,
- calm,
- climate,
- clime,
- dead calm,
- deathlike calm,
- doldrums,
- equator,
- flat calm,
- latitude,
- longitude,
- longitude in arc,
- lull,
- meridian,
- oily calm,
- parallel,
- polar easterlies,
- prevailing westerlies,
- prime meridian,
- roaring forties,
- subtropics,
- the line,
- trade wind,
- trades,
- tropic,
- tropics,
- wind-equator,
- windlessness,
- zone