chief executive

from WordNet (r) 3.0 (2006)
Chief Executive
    n 1: the person who holds the office of head of state of the
         United States government; "the President likes to jog every
         morning" [syn: {President of the United States}, {United
         States President}, {President}, {Chief Executive}]
    2: the office of the United States head of state; "a President
       is elected every four years" [syn: {President of the United
       States}, {President}, {Chief Executive}]