President of the United States

The President of the United States of America (sometimes abbreviated as POTUS) is the head of state and head of government of the United States. The president is at the head of the executive branch of the federal government, whose role is to enforce national law as given in the Constitution and written by Congress. Article Two of the Constitution establishes the president as commander-in-chief of the armed forces and enumerates powers specifically granted to the president, including the power to sign into law or veto bills passed by both houses of Congress, to create a Cabinet of advisors, to grant pardons or reprieves, and, with the "advice and consent" of the Senate, to make treaties and appoint federal officers, ambassadors, and federal judges, including Justices of the Supreme Court. As with officials in the other branches of the United States government, the Constitution restrains the president with a set of checks and balances designed to prevent any individual or group from taking absolute power.
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Noun
1. the person who holds the office of head of state of the United States government; "the President likes to jog every morning"
(synonym) United States President, President, Chief Executive
(hypernym) head of state, chief of state
(hyponym) Adams, John Adams, President Adams, President John Adams
(part-holonym) executive branch, Executive Office of the President
2. the office of the United States head of state; "a President is elected every four years"
(synonym) President, Chief Executive
(hypernym) presidency, presidentship