A definition is a statement of the meaning of a term (a word, phrase, or other set of symbols). Definitions can be classified into two large categories, intensional definitions (which try to give the essence of a term) and extensional definitions (which proceed by listing the objects that a term describes).
Putin is declared the most powerful man in the world by Forbes magazine... 1  Vladimir Putin is declared world's most powerful for third year in a row.  German Chancellor Angela Merkel steals runner-up from Barack Obama.
I would argue however, that it is not accurate. I would argue the most powerful people on earth are: Larry Page and Sergey Brin. The founders of Google. They are highly respected anywhere in their company (Alphabet Inc.) and the employees would probably do whatever is asked of them.