Mogul and Top dog

Mogul noun - A person of rank, power, or influence in a particular field.

Top dog and mogul are semantically related in person topic. In some cases you can use "Top dog" instead a noun "Mogul", when it comes to topics like leader of the pack, bigwig. informal substitute

Top dog noun - A person who is in charge.

Mogul and top dog are semantically related in person topic. Sometimes you can use "Mogul" instead a noun phrase "Top dog", if it concerns topics such as leader of the pack.