Noun ocean has 2 senses
  1. ocean - a large body of water constituting a principal part of the hydrosphere
    --1 is a kind of
    body of water, water
    --1 is a part of hydrosphere
    --1 has particulars:
     Antarctic Ocean; Arctic Ocean; Atlantic, Atlantic Ocean; deep; Indian Ocean; Pacific, Pacific Ocean
  2. ocean, sea - anything apparently limitless in quantity or volume
    --2 is a kind of large indefinite quantity, large indefinite amount
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