(physics) something joined by two equal and opposite forces that act along parallel lines

a pair of people who live together

an upward slope or grade (as in a road)

a way of access (upward and downward) consisting of a set of steps

support consisting of a place to rest the foot while ascending or descending a stairway

a flight of stairs or a flight of steps

causing an irritating cutaneous sensation; being affect with an itch

an irritating cutaneous sensation that produces a desire to scratch

a close friend who accompanies his buddies in their activities

a close friend who accompanies his buddies in their activities