Aqua

Aqua is the Latin word for water. It is sometimes as a prefix (such as aquaculture). It can also mean:

Aqua is also used by web site designers as a different name for the web colour cyan; aqua is also used for aquamarine by graphic designers and interior designers. 
Aqua (Chicago), a skyscraper in Chicago.  It is one of the tallest buildings in the world.
Aqua (band), a band from Denmark
Aqua, a character in the light novel/anime series, Kono Subarashii Sekai ni Shukufuku wo