To become wide or wider.
Example: "His eyes widened as her negligee fell to the floor."
To make wide or wider.
To let out clothes to a larger size.
Example: "She widened his trousers for him."
To broaden or extend in scope or range.
Example: "The police widened their enquiries."
To convert to a data type that can hold a larger number of distinct values.
Growing wider or farther apart.
Example: "The widening gap between rich and poor creates social problems."