entitle 给予一种权利,be entitled 被授予权利,给予一种称号
e.g.The president entitled him the dean of this department.
qualified 有资格,通过考试、获取证书等形式,有资质
e.g.He is a qualified engineer.
capable 有能力,有才能,有才干,有时和qualify 通用
e.g.He is capable of winning the bidding.(他有能力投中那个标.）
eligible 合格的,符合条件,合法的,够格的,因为qualified 或者 entitled,所以合格的
e.g.He is an eligible single,he can get married.
He is an eligible runner for the CEO position.