Choose the word which is different from the rest.

The answer is D. Barber.

A tailor makes clothes, a carpenter builds things out of wood, a blacksmith forges metal, and an engineer designs and builds machines. A barber cuts hair and shaves beards.

The other four options are all trades that involve working with physical materials to create something new. Barbering, on the other hand, is a service that involves providing a personal grooming experience.