Double tilde

Double tilde ( or ≈) may refer to:


 * Approximation ≈
 * Double negation ~(~
 * Smart match operator in Perl,
 * In PostgreSQL the operator is equivalent to LIKE


 * Double binary NOT operator (as used in languages like JavaScript and PHP as a quick way to cast variable as integer, where it is called 'two tildes' to indicate a form of double negation)


 * , a tilde diacritic that spans a pair of adjacent characters: ◌͠◌