1. 今後：henceforthinthefuturefromnowonaftertime 今后 | henceforward 今後 | henchman 忠实的追随者

2. 此后, 今后 (副)：henceforth 自此以后; 今后 (副) | henceforward 此后, 今后 (副) | henchman 忠实的追随者, 跟踪者, 党羽 (名)

1. 从今以后;此后
    Henceforward means from this time on.

    e.g. Henceforward France and Britain had a common interest...
           自此法国和英国有了共同的利益。
    e.g. He announced that it would henceforward be the custom to give him five rands each time a cow was slaughtered.
           他宣布今后每屠宰一头母牛就要按规矩给他5兰特。

adv

1. from this time forth
    from now on

    e.g. henceforth she will be known as Mrs. Smith

    Synonym: henceforth