Hotshot and Nob

Hotshot noun - A person with a high level of knowledge or skill in a field.

Nob and hotshot are semantically related. In some cases you can replace term "Nob" with "Hotshot", this nouns are similar.

Nob noun - The upper or front part of the body that contains the brain, the major sense organs, and the mouth.

Hotshot and nob are semantically related. Sometimes you can use "Hotshot" instead a noun "Nob".