To move one's position to allow others to occupy a place.(verb)
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Use "move up" in a sentence
"One time that summer, waiting in a long line for tickets at Milans stazione centrale, I saw a grown man move up twelve positions simply by waiting until the people in front of him suffered a momentary distraction."
"As more women move up the executive ladder, we suspect that they, too, will stop wasting time on that birds-and-bees thing."
"Since I am an almost-walking baby I am set on learning how to move up and down while standing."