Definitions
1.verbTo state under oath, to plead.
2.verbTo cite or quote an author or his work for or against.
3.verbTo adduce (something) as a reason, excuse, support etc.
4.verbTo make a claim as justification or proof; to make an assertion without proof."The agency alleged my credit history had problems."
5.verbTo lighten, diminish.
6.adjectiveAsserted but not proved.
7.adjectiveSupposed but doubtful.