HR stands for Human Resources, which is a department in many organizations that is responsible for managing personnel. HR is responsible for recruiting, hiring, and training new employees, as well as managing employee benefits and payroll. The two crossword solutions for HR are SEC (3 letters) and MIN (3 letters). SEC stands for Securities and Exchange Commission, which is a government agency that regulates the stock market and protects investors. MIN stands for Minimum Wage, which is the lowest wage an employer can legally pay an employee.