southing

/ˈsaʊðɪŋ/
noun
  1. Movement or travel toward the south.
    • The ship's southing continued as they crossed the equator into cooler waters.
    • During the autumn migration, many birds begin a steady southing to warmer climates.
    • The hikers' southing took them from the mountain pass down into the valley.
  2. The distance traveled or measured in a southerly direction, especially in navigation or surveying.
    • The captain recorded a southing of 200 nautical miles since their last port.
    • Using the map, they calculated the southing needed to reach the next landmark.
    • The surveyor noted the southing between the two boundary markers as exactly one mile.
  3. The moment when a celestial body (such as the sun or a star) crosses the meridian and reaches its highest point in the southern sky.
    • The astronomer waited for the star's southing to take precise measurements.
    • At noon, the sun's southing marks the exact time of day for observers in the Northern Hemisphere.
    • They scheduled the observation for the moon's southing, when it would be easiest to see.
Antonyms
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