Which word refers to a powerful person?

The term "magnate" specifically refers to a powerful and influential person, often in the context of business or industry. This word is commonly used to describe individuals who have achieved significant wealth and status, allowing them to exert considerable influence over particular sectors or within a society.

In contrast, the other words do not carry the same connotation of power or influence. "Conciliatory" suggests an approach aimed at making peace or reconciliation, which does not imply power. "Cordially" refers to a warm and friendly manner but lacks any association with power dynamics. "Validate" means to confirm or support something, typically a statement or belief, and does not relate to a person's influence or status.