rung

Arithmetic explains part of this: When the rungs on the ladder are closer together, it’s easier to climb.

Every bell pull that could be found was rung and rung and rung yet again, to wake the sleeping servants, call for smelling salts, find someone to run for a doctor, and so on.

Instead, let entrepreneurs and capital markets thrive, build order and create opportunities for everyone from the lowest to highest rungs of the economic ladder, and move society toward a higher purpose.

From this, they deduced that DNA must have a three-dimensional, double-helix structure - like a twisted ladder with rungs formed of alternating salt and phosphate groups.

Up the side of the station she went, rung after rung, higher and higher.