rungs

"The school's hierarchy is clear: the principal is at the top, followed by the vice-principals, then teachers, and finally, the students. "

"Don’t move that beam! It supports the whole platform."

"My favorite position in the classroom is near the window. "

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"Please tighten that screw a quarter-turn."

"The shelf is projecting about a foot from the wall. "

"He navigated the bomber to the Ruhr."

"The transport of goods is not included in the price given on the website."

"The swing set had a wooden crosspiece connecting the two vertical posts, providing support for the swings. "

"The clockmaker carefully adjusted the tiny gears inside the antique clock. "

"The carpenter built a new wooden bookshelf for my bedroom. "

"Inspect the system for leaks."