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aqua

1 American  
[ak-wuh, ah-kwuh] / ˈæk wə, ˈɑ kwə /

noun

aquae, plural aquas plural
  1. Chiefly Pharmacology.

    1. water.

    2. a liquid.

    3. a solution, especially in water.

  2. a light greenish-blue color.


adjective

  1. having the color aqua.

aqua- 2 American  
  1. variant of aqui-.


aqua British  
/ ˈækwə /

noun

  1. water: used in compound names of certain liquid substances (as in aqua regia ) or solutions of substances in water (as in aqua ammoniae ), esp in the names of pharmacological solutions

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. short for aquamarine

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does aqua- mean? Aqua- is a combining form used like a prefix meaning “water.” It is occasionally used in a variety of scientific and technical terms. Aquia comes from Latin aqua, meaning “water.” The Greek translation is ​​​​hýdōr, meaning “water,” which is the source of such combining forms as hydro-. What are variants of aqua-?In some terms, aqua- becomes aqui-, as in aquifer, from French aquifère. Want to know more? Read our Words That Use article on aqui-.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of aqua1

1350–1400; Middle English < Latin: water

Origin of aqua-2

Probably originally attributive use of aqua, or generalized from words in which it is etymologically the head noun of a phrase, as aquamarine, aquatint

Explanation

Aqua is a greenish-blue color, often thought of as the shade of water. When you buy a new blender, you might decide that the aqua one will brighten up your kitchen. Aqua is pretty close to the color known as cyan, almost exactly halfway between green and blue on the color spectrum. You can buy aqua clothing or aqua paint if you love the color and want your dining room to feel cool and colorful. The word aqua is sometimes also used to mean "water," and in fact the Latin root means "water, the sea, or rain."

Keep Reading on Vocabulary.com

Vocabulary lists containing aqua

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But that was before the Miami Grand Prix moved in—before the artificial marina, the aqua chicane or the race weekends that packed in 275,000 fans.

From The Wall Street Journal May 1, 2026

Eateries in Italy, Denmark and the U.K. offer their own aqua explorations.

From The Wall Street Journal Oct. 20, 2025

Kyra was attending a birthday party at the Berkshire aqua park on 6 August 2022 when she went missing.

From BBC Jun. 10, 2025

Hundreds of attendees lie on blankets, wearing wireless headphones rimmed with aqua lights.

From Los Angeles Times Jan. 1, 2025

As I understand by report I am much charged with starving the colony, I did always give every man his allowance faithfully, both of corn, oil, aqua vitae, etc., as was by the council proportioned.

From "Blood on the River" by Elisa Carbone

The former were driven from their homes by a peculiar interdictio ignis et aquae; the other—by an interdictio scientiae.

From History of the Jews in Russia and Poland. Volume II From the death of Alexander I. until the death of Alexander III. (1825-1894) by Friedlaender, I.

Ac, however, does not at all correspond to the well-known corruptions of aquae still found in the names of places in France where the Romans constructed baths.

From Wanderings by southern waters, eastern Aquitaine by Barker, Edward Harrison

The artificer keeps in hand two aquae, one of which is stronger than the other; the stronger is used at first, then the less strong, then at the last again the stronger.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

It is aquae vitae, water of life, or water that hath a health and life in it.

From Works of John Bunyan — Volume 03 by Bunyan, John

Saturday and Sunday post missam aquae, as p.

From A Plain Introduction to the Criticism of the New Testament, Vol. II. by Scrivener, Frederick Henry Ambrose

Merchants paused selling piñatas, street food and aquas frescas to take photos of the runners and cheer them on.

From Los Angeles Times Jul. 5, 2025

If you like a calming effect, choose soothing aquas, limes and mints.

From Washington Post May 4, 2016

The bright aquas and greens are also gender-neutral for friends and cousins of both boys and girls.

From The Wall Street Journal Aug. 27, 2015

Swirling and striped reds, whites, yellows, greens, aquas and blues surround you.

From New York Times Mar. 19, 2014

The principal verb is tenebat, the subject ille, and the object aquas; so translate:— He used to stay the running waters by his song.

From Helps to Latin Translation at Sight by Luce, Edmund

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