Anything on the right-hand side is on the right. Just add hand if you don’t want people getting it confused with right as in “correct.” Also, your most reliable friend is your right-hand woman (or man).
Your car's turn signal may be on the right-hand side of the steering wheel, and your dishwasher might be on the right-hand side of your kitchen sink. In both cases, right-hand describes something located toward the right, or in the direction of your right hand. A right-hand person, on the other hand, is someone you know you can depend on. In the musical "Hamilton," George Washington asks Alexander Hamilton to be his "right-hand man."