-ist

1. A public speaker trained in voice production, gesture, and delivery.
2. Someone who practices or teaches elocution.

Someone who advocates emancipation; especially, an advocate of the freeing of human beings from slavery.

1. Anyone who uses intellectual identification with, or the vicarious experiencing of, the feelings, thoughts, or attitudes of another person.
2. Someone who has an imaginative response to an object; such as, a natural object or a work of art; or who shows feelings or attitudes which are present in oneself.

1. A compiler of or writer in an encyclopedia.
2. One who attempts to deal with every branch of knowledge, or whose studies have a very extensive range.

1. A physician who specializes in the diagnosis and treatment of conditions affecting the endocrine system.
2. A medically qualified specialist in internal medicine who has subspecialised in the diseases of glandular organs.

A maker or propounder of riddles.

Someone who specializes in the study of insects.

Someone who practices entomotomy.

A specialist in the medical study of causes and transmissions of diseases among people.

A plague of epidemiologists.

A real or legendary person whose name has been used as an eponym.

One who is skilled in feats of balancing; especially a rope-walker or an acrobat.