submersion

/səbˈmɜrʒən/
noun
  1. The act or state of being completely under the surface of a liquid, especially water.
    • Prolonged submersion in cold water can lead to hypothermia.
    • The submersion of the boat took only a few minutes after the hull cracked.
    • The diver practiced controlled submersion to avoid ear pain.
  2. The act of hiding or suppressing something completely.
    • The submersion of her true feelings made the relationship difficult.
    • Historians criticized the submersion of important facts in the official report.
    • The submersion of local culture under global influences is a growing concern.
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