/ ˈprezɪdənt; NAmE / noun
1.
(also President ) the leader of a republic , especially the US :
Several presidents attended the funeral.
the President of the United States
President Bush is due to visit the country next month.
Do you have any comment, Mr President?
2.
(also President ) the person in charge of some organizations, clubs, colleges, etc. :
to be made president of the students' union
3.
( especially NAmE ) the person in charge of a bank or a commercial organization :
the bank president
the president of Columbia Pictures
► presi·den·tial / ˌprezɪˈdenʃl; NAmE / adjective :
a presidential campaign / candidate / election
a presidential system of government
For more information see the Cultural Guide
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WORD ORIGIN
late Middle English : via Old French from Latin praesident- sitting before, from praesidere sit before, from prae before + sedere sit.