underwater

/'ʌndə,wɔ:tə/
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underwater

A child watches colorful fish through the glass of an underwater viewing window.

Definition
  1. Adjective:
    • Located, existing, or used beneath the surface of the water: Describes something that is positioned or occurs in the water, not above it.
    • Designed to function or operate while submerged: Describes equipment or technology made for use below the water's surface.
    • Financially submerged; in a state of negative equity: In finance, describes a situation where an asset (like a house) is worth less than the money owed on it.
Usage
  • As an adjective, "underwater" typically comes before a noun (e.g., ) or after a linking verb like "is" or "are" (e.g., ).
  • It describes a state or location relative to the water's surface.
Examples
  • Adjective:
    • The divers explored the underwater cave system.
    • This underwater microphone can record whale songs.
    • After the market crash, many homeowners found themselves underwater on their mortgages.
Advanced Usage
  • "to go underwater": to submerge or to become financially insolvent.
    • The submarine will go underwater at dawn.
    • The company went underwater after the failed product launch.
  • "underwater archaeology": the study of historic sites and artifacts that are submerged.
    • She specializes in underwater archaeology in the Mediterranean.
Variants and Related Words
  • Subaqueous (adj): A more technical synonym for underwater.
    • The study focused on subaqueous plant life.
  • Submerged (adj): Covered with or sunk below the surface of a liquid.
    • The submerged rocks are a hazard to boats.
  • Undersea (adj): Existing, taking place, or designed for use beneath the sea.
    • They laid undersea cables for communication.
Synonyms
  • Submerged: Covered by water.
  • Sunken: Having gone down below the surface.
  • Submersed: (Botany) Growing under water.
Related Phrases
  • Underwater basket weaving: A humorous term for a college course perceived as useless or extremely easy.
    • He joked that his degree was in underwater basket weaving.
  • Underwater camera: A camera designed to take photographs beneath the water.
    • We need an underwater camera for our snorkeling trip.
underwater

A child watches colorful fish through the glass of an underwater viewing window.

Adjective
  1. growing or remaining under water
    • viewing subaqueous fauna from a glass-bottomed boat
    • submerged leaves
  2. beneath the surface of the water
    • submerged rocks