verb

Claim or assert that someone has done something illegal or wrong, typically without proof that this is the case.

he alleged that he had been assaulted

claim,assert,declare,state,proclaim,maintain,advance,contend,argue,affirm,aver,avow,attest,testify,swear,certify,give evidence,bear witness,charge,accuse,suggest,imply,hint,insinuate,indicate,intimate,impute,plead,pretend,profess