President Donald Trump has a new word fixation, but it appears he does not fully understand its meaning — and members of his staff seem less-than-reluctant to tell him. In the last week, Trump, 79, has used the word “excursion” dozens of times to describe his unauthorized war in Iran. He often makes a waving hand motion to describe what he apparently means. The word “excursion” usually refers to a quick, leisurely vacation, but the president has applied that to describe his deadly war.