VERB
（未提出证据而）断言，指称，声称
If you allege that something bad is true, you say it but do not prove it.
例句
She alleged that there was rampant drug use among the male members of the group...
她声称该团体中有大量的男性成员吸毒。
The accused is alleged to have killed a man...
被告据称谋杀了一名男子。