A Tuple in Python is an immutable sequence type, meaning once created, its elements cannot be changed. It’s defined by enclosing the elements in parentheses (()). Tuples are often used for heterogeneous data types and can be indexed.
On the other hand, a Dictionary is a mutable collection type that stores key-value pairs. Defined by curly braces ({}), dictionaries allow efficient retrieval of values when the key is known. Unlike tuples, they aren’t ordered until Python 3.7, where insertion order is preserved.