strong typing strongly typed <programming> Strict enforcement of {type} rules with no exceptions. Incorrect type usage can be detected either at {run time} or at {compile time}. Strong typing catches more type errors than {weak typing}, resulting in fewer hard errors. In a strongly typed language, conversion between types requires the use of explicit conversion functions as opposed to {implicit type coercion}. Typing strength is a continuum; {ML} is more strongly typed than {Java}, which is more strongly typed than {C}. Strong or weak typing is independent of the choice between {static typing} and {dynamic typing}. Among strongly typed languages, {Ada}, {Java}, {Haskell} and {ML} are statically typed, whereas {Python} and {Ruby} are dynamically typed. (2004-07-20)