3.nounA set of comma-separated values passed to a program or operating system as a parameter to a function call.
4.nounIn some programming languages, a data type that is similar but distinct from the list data type, whose instances are characterized by having a rather fixed arity, and the elements of which instances can differ from each other by data type. (Note: this definition may overlap with the previous one.)
"Both Python and Haskell have a tuple data type as well as a list data type."