Cases of word usage

1) a leading character who does not have the traditional characteristics of a hero such as courage and dignity (antihero)

2) the part of a story or drama (after the climax) when the leading character suffers (before the final catastrophe or resolution) (falling)

3) the rubbing of one thing against another; (an instance of) a difference of opinion leading to argument and quarrelling (friction)

4) a rope or leather strap put round a horse's head (for leading or fastening the horse) (halter)

5) a length of leather, chain etc used for leading or controlling a dog (leash)

6) the period leading to an activity, election etc (run-up)

7) (one of) a series of steps leading from one floor inside a building to another (stair)