What term describes a person who collects stamps?

The term that accurately describes a person who collects stamps is "philatelist." This designation is derived from the word "philately," which specifically refers to the collection and study of postage stamps and related materials. Philatelists are often passionate about the history, art, and cultural significance of stamps, as well as the intricate details of different stamp varieties and their printing methods.

In contrast, the other terms listed pertain to different disciplines. A philologist studies language and its historical development. A philanthropist is someone who seeks to promote the welfare of others, often through charitable giving. Lastly, a philosopher engages in the study of fundamental questions regarding existence, knowledge, values, reason, and ethics. Therefore, "philatelist" is the only option that specifically correlates to the hobby of stamp collecting.