Alternative spelling of post-haste

After the death of someone. / Taking place after one's own death. / In reference to a work, published after the author's death. / (originally) Born after the death of one's father.

A person continuing to study in a field after having successfully completed a degree course.

Of studies which take place after having successfully completed a degree course.

A poster, especially for advertisement purposes, put up illegally / One who posts such posters

A delay, as a formal delay in a proceeding.

(countable) An addendum to a letter, added after the author's signature. / (countable) An addition to a story, play, etc. after its completion.

To extend (a letter or another document) with additional remarks.

A marking made by a postal service on a letter, package, postcard or the like, usually indicating the place where and the date and time when the item was received or processed for the first time, and often serving to cancel a postage stamp.

To apply a postmark on.