authentication

词形变化：

名词: authentication | 动词过去式: authenticated | 动词过去分词: authenticated | 动词现在分词: authenticating | 动词第三人称单数: authenticates |

同义词：

genuine | reliable | true | legitimate | actual | real | faithful | original | factual | natural | pure | substantial | sincere | official | accepted | hearty | literal | confirmed | proof | good | bona fide | valid | dependable | trustworthy | accurate | veritable | unquestionable |

反义词：

false | spurious | fictitious |

词义辨析：

同义参见:

proof