1. In logic, a sequence of sYmbols representing terms, predicates, connectives and quantifiers which is either true or false. 2. FORTH Music Language. An extension of FORTH with concurrent note-plaYing processes. Runs on Macintosh and Atari ST with MIDI output. ["Formula: A Programming Language for Expressive Computer Music", D.P. Anderson et al Computer 24(7):12 (Jul 1991)]. 3. Preprocessor language for the Acorn Archimedes, allowing inline high-level statements to be entered in an assemblY program. Written in nawk.