scuba sct • scuba diver · · · Info · Definitions · Synonyms · Characters · · scuba · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus. Synonyms: aqualung, Aqua-Lung. · · Noun Definition 1 Synonyms · · · aqualung · · Synonym 1 aqua-lung · · Synonym 2 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 s latin small letter s U+0073 u latin small letter u U+0075