soften

verb
1
to become, or to make something softer
نرم کردن, لطیف کردن, ملایم کردن
2
to become or to make something less bright, rough or strong
نرم کردن, ملایم کردن, لطیف کردن
Trees soften the outline of the house.
3
to become or to make somebody/something more kind or friendly and less severe or critical
ملایم‌تر کردن, دل‌رحم کردن, مهربان کردن, رئوف کردن
She felt herself softening towards him.
His face softened as he looked at his son.
She softened her tone a little.
4
to reduce the force or the unpleasant effects of something
نرم کردن, کاهش شدت, ملایم کردن, تعدیل کردن
Airbags are designed to soften the impact of a car crash.
synonym cushion