Formal language: Set (mathematics), String (computer science), Symbol (formal), Alphabet grammar, Formation rule, ... science, Linguistics, Semantics, Data format

Operational Semantics: Computer Science, Program, Formal Semantics of Programming Languages, Axiomatic

Computational Linguistics and Formal Semantics

Protocol (computing): Computer Science, Communication, Data, Syntax, Semantics, Handshaking, Suite

Object (computer science): Computer Science, Programming Language, Value, Variable, Subroutine, Data Structure, Object-oriented