Cases of word usage

1) the willingness shown by, an act of, working or acting together for a common purpose (cooperation)

2) full of, showing, strong desire or willingness (eager)

3) having, showing, thoughtfulness, willingness or sympathy for others (kind)

4) (the show of) willingness to forget, not cause suffering, not punish severely (mercy)

5) to make very small bites of (something); to show (only) a little willingness to accept (an offer), agree (to a suggestion) etc (nibble)