"Strongly typed" refers to a programming language feature where the type of a variable is strictly defined and enforced. This means that once a variable is assigned a type, it cannot be used as a different type without explicit conversion. For example, if a variable is defined as an integer, trying to use it as a string will result in an error. This helps prevent bugs and makes the code more predictable. In strongly typed languages like Java or C#, type checking occurs at compile time or runtime, ensuring that operations on variables are type-safe. This contrasts with weakly typed languages, where types can be more flexible, allowing for easier but potentially error-prone coding practices. Strong typing promotes clearer code and better maintenance.