Shoe Shot Soot Coot Coat
Corn Coon Coop Chop Shop
rake - lake - lane - land - lend - lead - leaf
A ladder has different amount of steps, depending on how big it is.
There is no word like lader. If you meant ladder, the steps of a ladder are called rungs.
The rungs of a ladder are the steps. Unless it is a step ladder, then they are just steps.
Old English hlǣdder; related to Old High German leitara, meaning steps.
18 steps
rungs
steps
11 rungs.
According to an ancient midrash (Tanchuma), as well as Jewish mysticism, Jacob's ladder (Genesis ch.28) had four steps. Bear in mind that it was a spiritual ladder and the steps were not close to each other.
The steps of a ladder are called rungs.