The minus emoji represents subtraction or negation.
Unicode: U+2796
The minus emoji (➖) is a simple mathematical symbol depicting subtraction or negation. It is commonly used to indicate a decrease, removal, or negative connotation. In digital communication, it can convey a sense of dissatisfaction, criticism, or opposition.
That movie was a total minus for me. 😕➖
My bank balance is minus $50 after that expensive dinner. 💸➖
5 ➖ 2 = 3