reassurance
/ˌriːəˈʃʊərəns/noun
mass noun
1- the action of removing someone's doubts or fears清除疑虑; 安慰：
children need reassurance and praise.
孩子们需要安慰和表扬。
1.1
- count noun a statement or comment that removes someone's doubts or fears保证, 消除疑虑的说法（或意见）：
we have been given reassurances that the water is safe to drink.
我们得到保证, 饮用此水是安全的。