The term 'lock changers' refers to a profession that involves dyeing and changing the locks of hair. DYES (4 letters) and DYERS (5 letters) are two words that describe this profession. Dyers are people who use DYES to change the color of hair, while lock changers are those who specialize in changing the texture and style of hair. This profession requires a great deal of skill and knowledge in order to achieve the desired results.