A flat surface or support that facilitates the ascent or descent of a stairway or step-ladder.
STEP | linked | STAIRS |
STEP | linked | FOOT OR LEG |
STEP | linked | LADDER OR STAIRS |
FOOT OR LEG | linked | STEP |
FOOT OR LEG | linked | STEP |
LADDER OR STAIRS | linked | STEP |
Id | Concept in source | Conceptlist |
---|---|---|