Read the dictionary definition of soften. All definitions for this word.
1. become soft or softer
1. The bread will soften if you pour some liquid on it
2. make soft or softer
1. This liquid will soften your laundry
3. lessen in force or effect
1. soften a shock
2. break a fall
4. make less severe or harsh
1. He moderated his tone when the students burst out in tears
5. protect from impact
1. cushion the blow
6. make (images or sounds) soft or softer
7. give in, as to influence or pressure