underwater

American  

[uhn-der-waw-ter, -wot-er] / ˈʌn dərˈwɔ tər, -ˈwɒt ər /

adjective

1. existing or occurring under water.

2. designed to be used under water.

3. located below a ship's waterline.

---

adverb

1. beneath the water.

   to travel underwater.

noun

1. the water beneath the surface.

   cold currents in the underwater.

2. underwaters, the depths, as of a sea, lake, etc.

underwater British  

/ ˈʌndəˈwɔːtə /

adjective

1. being, occurring, or going under the surface of the water, esp the sea

   underwater exploration

2. nautical below the water line of a vessel

3. (of a stock option or other asset) having a market value below its purchase value

---

adverb

1. beneath the surface of the water

Etymology

Origin of underwater

First recorded in 1620–30; under- + water

Example Sentences

Don’t miss the Tropical Rainforest Aviary for free-flight birds or the Arctic Passage, where you can watch polar bears and seals swim underwater.

From Salon

When you finally drop down, the trampoline mat sinking, it’s like you’re underwater.

From Literature

Seama explains, "The underwater location allows us to implement systematic, large-scale surveys."

From Science Daily

The Labs also had to figure out ways to create underwater conduits, as well as switching centers that could manage the growing number of customers and escalating amounts of data.

From The Wall Street Journal

This week it says it has hit weapons and naval cruise-missile production sites in Tehran, an underwater research center in Isfahan used to manufacture submarines, and an explosive-materials production site in Isfahan.

From The Wall Street Journal

Related Words

• submerged
• undersea