to make someone gradually stop using something that is bad for them使(某人)逐渐戒掉;使(某人)脱离
It's difficult to wean addicts off cocaine once they're hooked.一旦对可卡因上了瘾,就很难戒掉。
The whole scheme is intended to wean people off welfare dependency.整个计划旨在使人们摆脱对福利的依赖。