确信quèxìn 1.确实地相信;坚信{hold the firm belief (that); firmly believe (that); be confident (that); be sure of; be certain of; be convinced of}: 我们～这一崇高理想一定能实现。{We are confident that the great ideal will be realized.} 2.确实的信息{true, definite news; firm response}: 不管事成与否,请尽速给个～。{Whether successful or not, just send definite news.}