Aquatints are a form of etching in which tones are created through the use of acid. When looking for synonyms for the word "aquatints," one might consider terms like intaglio, engraving, or printing. The word "intaglio" has a similar meaning to aquatints, as it refers to the process of creating prints using a metal plate with designs etched into it. Engraving and printing are also related terms, as they are used to describe the process of creating images on a surface. Other synonyms for aquatints might include etchings, lithographs, or monotypes. All of these terms describe different techniques for creating printed images, each with its unique properties and characteristics.