What is the meaning if president?​

The elected head of a republic is president.

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1 : an official chosen to preside over a meeting or assembly. 2 : an appointed governor of a subordinate political unit. 3 : the chief officer of an organization (such as a corporation or institution) usually entrusted with the direction and administration of its policies. the head of the government and chief executive officer of a modern republic. 2 : the chief officer of a company, organization, or society a bank president a college president. president.

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.